2020 United States House of Representatives elections in California

The 2020 United States House of Representatives elections in California were held on November 3, 2020, to elect the 53 U.S. representatives from the state of California, one from each of the state's 53 congressional districts. The elections coincided with the 2020 U.S. presidential election, as well as other elections to the United States House of Representatives, elections to the United States Senate, and various state and local elections.

This is the first general election since 1994 in which a Republican defeated an incumbent House Democrat in California. This year, despite the statewide dominance by Democratic presidential nominee Joe Biden, a record-breaking number of Republicans defeated Democratic House incumbents: Young Kim defeated Gil Cisneros in District 39, Michelle Park Steel defeated Harley Rouda in District 48, and David Valadao defeated TJ Cox in District 21 to reclaim his old seat. This happened even as Democrats won the statewide combined House vote by a wider margin than Biden. Mike Garcia also defeated Christy Smith in District 25 to retain the seat he flipped in the May 12 special election to fill the seat vacated by Katie Hill.

District 1
The 1st district covers the northeastern part of the state bordering Nevada and Oregon. Incumbent Republican Doug LaMalfa, who had represented the district since 2013, ran for re-election. He was re-elected with 54.9% of the vote in 2018. The district had a PVI of R+11.

Advanced to general

 * Doug LaMalfa, incumbent U.S. representative

Advanced to general

 * Audrey Denney, educator, farmer and general election candidate for this seat in 2018

Eliminated in primary

 * Rob Lydon, veterinarian

Eliminated in primary

 * Gregory Edward Cheadle, perennial candidate
 * Joseph LeTourneau IV, leadership developer

Results
[[File:2020CA01primary.svg|thumb|upright|2020 California's 1st congressional district primary results by county Map legend

{{legend|#d35f5f|LaMalfa—50–60%}}

{{legend|#c83737|LaMalfa—60–70%}}

{{legend|#a02c2c|LaMalfa—70–80%}}

{{legend|#782121|LaMalfa—80–90%}}

{{legend|#87aade|Denney—40–50%}} ]]

Endorsements

 * Organizations
 * National Right to Life Committee


 * U.S. senators
 * Kamala Harris, U.S. senator (CA); 2020 vice presidential nominee
 * Bernie Sanders, U.S. senator (I-VT), 2016 and 2020 presidential candidate


 * Labor unions
 * Brotherhood of Locomotive Engineers and Trainmen
 * California Teachers Association
 * International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers – Local 118
 * International Association of Machinists and Aerospace Workers
 * International Brotherhood of Electrical Workers – Local 340
 * International Brotherhood of Teamsters – Joint Council 7
 * International Union of Operating Engineers – Local 3
 * National Education Association
 * Service Employees International Union
 * United Association
 * United Brotherhood of Carpenters and Joiners of America


 * Organizations
 * California Democratic Party
 * California League of Conservation Voters
 * College Democrats of America – California State University, Chico
 * EMILY's List
 * End Citizens United
 * Equality California
 * Indivisible movement
 * People for the American Way
 * Planned Parenthood
 * Sierra Club
 * Sunrise Movement
 * Young Democrats of America – California

District 2
The 2nd district encompasses the North Coast, stretching from the Golden Gate Bridge to the Oregon border, taking in San Rafael, Petaluma, Novato, Windsor, Healdsburg, Ukiah, Fort Bragg, Fortuna, Eureka, Arcata, McKinleyville, and Crescent City. Incumbent Democrat Jared Huffman, who had represented the district since 2013, ran for re-election. He was re-elected with 77.0% of the vote in 2018. The district had a PVI of D+22.

Advanced to general

 * Jared Huffman, incumbent U.S. representative

Eliminated in primary

 * Rachel Moniz, operations officer

Advanced to general

 * Dale K. Mensing, cashier and general election candidate for this seat in 2014, 2016, and 2018

Eliminated in primary

 * Melissa Bradley, businesswoman

Eliminated in primary

 * Charles "Wally" Coppock

Results
[[File:2020CA02primary.svg|thumb|upright|x290px|2020 California's 2nd congressional district primary results by county Map legend

{{legend|#87aade|Huffman—40–50%}}

{{legend|#5f8dd3|Huffman—50–60%}}

{{legend|#3771c8|Huffman—60–70%}}

{{legend|#2c5aa0|Huffman—70–80%}}

{{legend|#de8787|Mensing—40–50%}} ]]

District 3
The 3rd district takes in areas north and west of Sacramento. It consists of Colusa, Sutter, and Yuba counties plus portions of Glenn, Lake, Sacramento, Solano, and Yolo counties. Incumbent Democrat John Garamendi, who had represented the 3rd district since 2013 and had previously represented the 10th district from 2009 to 2013, ran for re-election. He was re-elected with 58.1% of the vote in 2018. The district had a PVI of D+5.

Advanced to general

 * John Garamendi, incumbent U.S. representative

Advanced to general

 * Tamika Hamilton, U.S. Air Force veteran

Eliminated in primary

 * Sean Feucht, gospel singer

Results
[[File:2020CA03primary.svg|thumb|upright|2020 California's 3rd congressional district primary results by county Map legend

{{legend|#87aade|Garamendi—40–50%}}

{{legend|#5f8dd3|Garamendi—50–60%}}

{{legend|#2c5aa0|Garamendi—70–80%}}

{{legend|#de8787|Hamilton—40–50%}} ]]

Endorsements

 * U.S. Executive Branch officials
 * Bill Clinton, former president of the United States (1993–2001); former governor of Arkansas (1979–1981) and (1983–1992); former attorney general of Arkansas (1977–1979)
 * Barack Obama, former president of the United States (2009–2017); former U.S. senator from Illinois (2005–2008)
 * Richard Rominger, former U.S. Deputy Secretary of Agriculture (1993–2001); former Secretary of Food and Agriculture of California (1977–1982)


 * U.S. senators
 * Dianne Feinstein, U.S. senator from California (1992–present); former mayor of San Francisco (1978–1988); Ranking Member of the Senate Judiciary Committee (2017–present)


 * U.S. representatives
 * Vic Fazio, former U.S. representative from CA-03 (1993–1999) and CA-04 (1979–1993)
 * Jared Huffman, U.S. representative from CA-02 (2013–present)
 * Doris Matsui, U.S. representative from CA-06 (2013–present) and CA-05 (2005–2013)
 * George Miller, former U.S. representative from CA-11 (2013–2015) and CA-07 (1975–2013)
 * Mike Thompson, U.S. representative from CA-05 (2013–present) and CA-01 (1999–2013)


 * State officials
 * Delaine Eastin, former Superintendent of Public Instruction of California (1995–2003); candidate for Governor of California in 2018


 * State legislators
 * Cecilia Aguiar-Curry, California State Assemblywoman from District 4 (2016–present)
 * Roger Dickinson, former California State Assemblyman from District 7 (2012–2014) and District 9 (2010–2012)
 * Jim Frazier, California State Assemblyman from District 11 (2012–present)
 * Lois Wolk, former California State Senator from District 3 (2012–2016) and District 5 (2008–2012)
 * Mariko Yamada, former California State Assemblywoman from District 4 (2012–2014) and District 8 (2008–2012)


 * Labor unions
 * Air Line Pilots Association, International
 * Amalgamated Transit Union
 * American Federation of Government Employees
 * American Federation of State, County and Municipal Employees
 * American Federation of Teachers
 * American Maritime Officers
 * American Postal Workers Union
 * California Teachers Association
 * Communications Workers of America
 * International Association of Fire Fighters
 * International Association of Machinists and Aerospace Workers
 * International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
 * International Brotherhood of Electrical Workers
 * International Brotherhood of Teamsters
 * International Longshore and Warehouse Union
 * International Union of Painters and Allied Trades
 * Laborers' International Union of North America
 * Marine Engineers' Beneficial Association
 * National Air Traffic Controllers Association
 * National Association of Letter Carriers
 * National Education Association
 * National Nurses United
 * National Rural Letter Carriers' Association
 * National Union of Healthcare Workers
 * Office and Professional Employees International Union
 * Seafarers International Union of North America
 * Service Employees International Union
 * Transport Workers Union of America
 * United Association
 * United Auto Workers
 * United Brotherhood of Carpenters and Joiners of America
 * United Food and Commercial Workers
 * United Steelworkers
 * United Transportation Union


 * Organizations
 * California Democratic Party
 * Human Rights Campaign
 * J Street
 * League of Conservation Voters
 * National Organization for Women
 * Ocean Champions
 * Sierra Club
 * Young Democrats of America – California


 * Newspapers
 * Daily Democrat
 * Daily Republic
 * The Reporter
 * The Sacramento Bee


 * Organizations
 * Maggie's List

District 4
The 4th district encompasses the suburbs of Sacramento and the Sierra Nevada. Incumbent Republican Tom McClintock, who had represented the district since 2009, ran for re-election. He was re-elected with 54.1% of the vote in 2018. The district had a PVI of R+10.

Advanced to general

 * Tom McClintock, incumbent U.S. representative

Eliminated in primary

 * Julianne Benzel, history teacher
 * Jamie Byers, state parole agent
 * Jacob Thomas, businessman

Advanced to general

 * Brynne S. Kennedy, businesswoman

Withdrawn

 * Sean Frame, Placerville Union school board member

Eliminated in primary

 * Robert Lawton, businessman and Democratic candidate for this seat in 2018

Declined

 * Jessica Morse, deputy secretary of forest resources management at the California Natural Resources Agency and general election candidate for this seat in 2018

Results
[[File:2020CA04primary.svg|thumb|upright|2020 California's 4th congressional district primary results by county Map legend

{{legend|#de8787|McClintock—40–50%}}

{{legend|#d35f5f|McClintock—50–60%}}

{{legend|#c83737|McClintock—60–70%}}

{{legend|#3771c8|Kennedy—60–70%}}

{{legend|#2c5aa0|Kennedy—70–80%}}]]

Endorsements

 * Organizations
 * Fresno County Republican Party


 * U.S. senators
 * Kamala Harris, U.S. senator (D-CA); 2020 vice presidential nominee


 * State officials
 * Eleni Kounalakis, Lieutenant Governor of California


 * Labor unions
 * AFL-CIO
 * American Federation of State, County and Municipal Employees
 * California Federation of Teachers
 * California School Employees Association
 * California Teachers Association


 * Organizations
 * Blue Dog Coalition
 * California League of Conservation Voters
 * EMILY's List
 * Humanity Forward
 * Indivisible
 * Sierra Club


 * Individuals
 * Meg Whitman, 2010 Republican nominee for governor

Polling

 * with Generic Opponent

District 5
The 5th district encompasses much of California's wine country. It includes Cotati, Rohnert Park, Santa Rosa, Sonoma, Napa, American Canyon, Vallejo, Benicia, Hercules, and part of Martinez. Incumbent Democrat Mike Thompson, who had represented the district since 1999, ran for re-election. He was re-elected with 78.9% of the vote in 2018. The district had a PVI of D+21.

Advanced to general

 * Mike Thompson, incumbent U.S. representative

Eliminated in primary

 * Jason Kishineff, activist
 * Josh Wesley Tyler, teacher

Advanced to general

 * Scott Giblin, information services technician

Results
[[File:2020CA05primary.svg|thumb|upright|2020 California's 5th congressional district primary results by county Map legend

{{legend|#19aeff|Thompson—50–60%}}

{{legend|#0084c8|Thompson—60–70%}} ]]

Endorsements

 * Labor unions
 * California Teachers Association


 * Organizations
 * Brady Campaign
 * California League of Conservation Voters
 * Human Rights Campaign
 * J Street PAC
 * Planned Parenthood Action Fund
 * Sierra Club

District 6
The 6th district takes in Sacramento and its surrounding suburbs, including West Sacramento and North Highlands. Incumbent Democrat Doris Matsui, who had represented the district since 2005, ran for re-election. He was re-elected with 80.4% of the vote in 2018. The district had a PVI of D+21.

Advanced to general

 * Doris Matsui, incumbent U.S. representative

Eliminated in primary

 * Benjamin Emard, attorney

Advanced to general

 * Chris Bish, realtor

Eliminated in primary

 * Sherwood Ellsworth Haisty Jr., minister

Results
[[File:2020CA06primary.svg|thumb|upright|2020 California's 6th congressional district primary results by county Map legend

{{legend|#3465a4|Matsui—60–70%}}

{{legend|#204a87|Matsui—70–80%}}]]

Endorsements

 * Labor unions
 * California Teachers Association
 * National Union of Healthcare Workers


 * Organizations
 * California League of Conservation Voters
 * Human Rights Campaign
 * Planned Parenthood Action Fund
 * Sierra Club

District 7
The 7th district is located in southern and eastern Sacramento County, including the cities of Elk Grove, Folsom, and Rancho Cordova. Incumbent Democrat Ami Bera, who had represented the district since 213, ran for re-election. He was re-elected with 55.0% of the vote in 2018. The district had a PVI of D+3.

Advanced to general

 * Ami Bera (Democratic), incumbent U.S. Representative
 * Buzz Patterson (Republican), retired United States Air Force Lieutenant Colonel

Eliminated in primary

 * Jeff Burdick (Democratic), public affairs specialist
 * Jon Ivy (Republican), voting rights activist
 * Chris Richardson (Green), engineer

Endorsements

 * Labor unions
 * California Teachers Association


 * Organizations
 * 314 Action
 * California League of Conservation Voters
 * End Citizens United
 * Human Rights Campaign
 * J Street PAC
 * NARAL Pro-Choice America
 * Planned Parenthood Action Fund
 * Population Connection
 * Sierra Club


 * Organizations
 * National Right to Life Committee

District 8
The 8th district includes most of the eastern desert regions of the state. It stretches from Mono Lake to Twentynine Palms and consists of Inyo and Mono counties plus most of San Bernardino County. Incumbent Republican Paul Cook, who had represented the district since 2013, announced on September 17, 2019, that he would not seek re-election, instead planning to run for an open seat on the San Bernardino County Board of Supervisors. He was re-elected with 60.0%% of the vote in 2018. The district had a PVI of R+9.

Advanced to general

 * Jay Obernolte, state assembly member

Eliminated in primary

 * Tim Donnelly, former state assembly member, candidate for governor in 2014, for this seat in 2016 and general election candidate in 2018
 * Jerry Laws, candidate for U.S. Senate in 2016 and 2018
 * Jeremy Staat, U.S. Marine veteran and former NFL player
 * Justin David Whitehead, realtor

Declined

 * Paul Cook, incumbent U.S. representative

Advanced to general

 * Christine Bubser, engineer and biotechnology advisor

Eliminated in primary

 * Bob Conaway, attorney and general election candidate for this seat in 2014
 * James Ellars, energy consultant

Eliminated in primary

 * Jeff Esmus, teacher

Declined

 * Chad Mayes, state assembly member and former Minority Leader of the California Assembly

Endorsements

 * Organizations
 * War Veterans Fund

Results
[[File:2020CA08primary.svg|thumb|225px|2020 California's 8th congressional district primary results by county Map legend

{{legend|#e9afaf|Obernolte—30–40%}}

{{legend|#afc6e9|Bubser—30–40%}}

{{legend|#87aade|Bubser—40–50%}} ]]

Endorsements

 * U.S. senators
 * Kamala Harris, U.S. senator (D-CA); 2020 vice presidential nominee


 * U.S. representatives
 * Julia Brownley, U.S. representative (CA-26)
 * Judy Chu, U.S. representative (CA-27)
 * Gil Cisneros, U.S. representative (CA-39)
 * Mike Levin, U.S. representative (CA-49)
 * Ted Lieu, U.S. representative (CA-33)
 * Katie Porter, U.S. representative (CA-45)
 * Raul Ruiz, U.S. representative (CA-36)
 * Linda T. Sánchez, U.S. representative (CA-38)


 * State legislators
 * Connie Leyva, state senator (SD-20)


 * Labor unions
 * California Labor Federation


 * Organizations
 * California League of Conservation Voters
 * Demand Universal Healthcare
 * EMILY's List
 * End Citizens United
 * Equality California
 * Sierra Club

District 9
The 9th district is centered around the San Joaquin Delta, taking in Stockton, Antioch, Galt, Oakley, Lathrop, and Lodi. Incumbent Democrat Jerry McNerney, who had represented the district since, ran for re-election. He was re-elected with 56.5% of the vote in 2018. The district had a PVI of D+8.

Advanced to general

 * Jerry McNerney, incumbent U.S. representative

Advanced to general

 * Antonio C. "Tony" Amador, retired U.S. Marshal and general election candidate for this seat in 2014 and 2016

Eliminated in primary

 * William Martinek, financial advisor

Results
[[File:2020CA09primary.svg|thumb|180px|2020 California's 9th congressional district primary results by county Map legend

{{legend|#5f8dd3|McNerney—50–60%}}

{{legend|#de8787|Amador—40–50%}} ]]

District 10
The 10th district covers San Joaquin Valley, including the cities of Oakdale, Manteca, Modesto, Tracy, and Turlock. Incumbent Democrat Josh Harder, who had represented the district since 2018, ran for re-election. He was elected with 52.3% of the vote in 2018. The district had a PVI of EVEN.

Advanced to general

 * Josh Harder, incumbent U.S. representative

Eliminated in primary

 * Michael J. "Mike" Barkley, accountant and perennial candidate
 * Ryan Blevins, robotics engineer

Advanced to general

 * Ted Howze, veterinarian, former Turlock city council member and candidate for this seat in 2018

Eliminated in primary

 * Bob Elliott, San Joaquin County supervisor
 * Marla Sousa Livengood, businesswoman and general election candidate for the 9th district in 2018

Withdrawn

 * Charles Dossett, U.S. Army veteran

Declined

 * Jeff Denham, former U.S. representative

Endorsements

 * Organizations
 * Combat Veterans for Congress

Results
[[File:2020CA10primary.svg|thumb|180px|2020 California's 10th congressional district primary results by county Map legend

{{legend|#87aade|Harder—40–50%}} ]]

Endorsements

 * U.S. Executive Branch officials
 * Barack Obama, former president of the United States (2009–2017, former senator from Illinois (2005–2008)


 * U.S. senators
 * Kamala Harris, U.S. senator (D-CA); 2020 vice presidential nominee


 * Labor unions
 * Service Employees International Union


 * Organizations
 * Council for a Livable World
 * End Citizens United
 * Human Rights Campaign
 * League of Conservation Voters Action Fund
 * Planned Parenthood Action Fund
 * Sierra Club

District 11
The 11th district encompasses parts of the East Bay, including Alamo, Antioch, Bay Point, Blackhawk, Clayton, Concord, Danville, Diablo, El Cerrito, El Sobrante, Kensington, Lafayette, Moraga, Orinda, Pittsburg, Pleasant Hill, San Pablo, Richmond and Walnut Creek. The incumbent was Democrat Mark DeSaulnier, who was re-elected with 74.1% of the vote in 2018.

Advanced to general

 * Mark DeSaulnier (Democratic), incumbent U.S. Representative
 * Nisha Sharma (Republican), realtor

Eliminated in primary

 * Michael Ernest Kerr (Green), social justice advocate

District 12
The 12th district is based entirely within San Francisco. The incumbent was Speaker of the House Nancy Pelosi (Democratic), who was re-elected with 86.8% of the vote in 2018.

Advanced to general

 * Shahid Buttar (Democratic), attorney and democratic socialist activist
 * Nancy Pelosi (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Agatha Bacelar (Democratic), documentary filmmaker and engineer
 * John Dennis (Republican), businessman and perennial candidate
 * Deanna Lorraine (Republican), political commentator

Withdrawn

 * Tom Gallagher (Democratic), former Massachusetts state representative (1980–1986)

Endorsements

 * Local officials
 * Matt Gonzalez, former president of the San Francisco Board of Supervisors
 * Eric Mar, former member of the San Francisco Board of Supervisors from District 1
 * Dean Preston, member of the San Francisco Board of Supervisors from District 5 (withdrawn)
 * Jason West, former mayor of New Paltz, New York


 * Individuals
 * Medea Benjamin<ref
 * Cory Doctorow
 * Mike Gravel, Alaska politician and former Democratic presidential primary candidate
 * Ana Kasparian, political commentator
 * Shaun King, activist
 * Lawrence Lessig
 * Susan Sarandon, actress and activist
 * Linda Sarsour
 * Richard Stallman
 * Cornel West
 * Marianne Williamson, author and 2020 Democratic Party presidential primaries candidate
 * Unions
 * San Francisco Tenants Union


 * Organizations
 * Democratic Socialists of America – San Francisco chapter (withdrawn)
 * Democratic Socialists of America – Silicon Valley chapter (withdrawn)
 * Our Revolution – Contra Costa chapter
 * Our Revolution – East Bay chapter
 * San Francisco League of Young Voters
 * Veterans for Bernie Sanders


 * Publications
 * Current Affairs


 * Unions
 * California Teachers Association
 * Service Employees International Union California
 * Organizations
 * End Citizens United
 * Human Rights Campaign
 * League of Conservation Voters
 * Planned Parenthood Action Fund
 * Sierra Club


 * Individuals
 * James L. Brooks, director, producer and writer
 * Gregg Henry, actor and musician
 * William Hurt, actor, director, producer and screenwriter
 * Kristen Johnston, actress and comedian
 * Wendie Malick, actress and activist
 * Alyssa Milano, actress and activist
 * Alexandra Neil, actress
 * James Sie, actor and voice actor
 * Alice Wetterlund, actress, comedian and podcast host

District 13
The 13th district takes in northern Alameda County, encompassing Alameda, Albany, Berkeley, Emeryville, Oakland, Piedmont, and San Leandro. The incumbent was Democrat Barbara Lee, who was re-elected with 88.4% of the vote in 2018.

Advanced to general

 * Barbara Lee (Democratic), incumbent U.S Representative
 * Nikka Piterman (Republican), software engineer

District 14
The 14th district is located on the San Francisco Peninsula, taking in most of San Mateo County and a small part of southwestern San Francisco. The incumbent was Democrat Jackie Speier, who was re-elected with 79.2% of the vote in 2018.

Advanced to general

 * Ran Petel (Republican), financial executive
 * Jackie Speier (Democratic), incumbent U.S Representative

Eliminated in primary

 * Cristos Goodrow (Democratic), technology executive
 * Eric Taylor (no party preference), research manager

Results
[[File:2020CA14primary.svg|thumb|upright|2020 California's 14th congressional district primary results by county Map legend

{{legend|#005c94|Speier—70–80%}} ]]

District 15
The 15th district encompasses eastern Alameda County, including Castro Valley, Dublin, Fremont, Hayward, Livermore, Pleasanton, Sunol, Union City, and parts of Contra Costa County, including San Ramon and part of Danville. The incumbent was Democrat Eric Swalwell, who was re-elected with 73.0% of the vote in 2018, and ran in the 2020 presidential race. Swalwell joined the House race after ending his presidential campaign.

Advanced to general

 * Alison Hayden (Republican), special education teacher
 * Eric Swalwell (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Samantha Campbell (Democratic), college student
 * Don J. Grundmann (no party preference), chiropractor (Constitution)
 * Austin E. Intal (Democratic), sales and real estate agent
 * Peter Yuan Liu (Republican), candidate for Governor of California in 2018
 * Tuan Phan (Democratic), biochemist

Withdrawn

 * Aisha Wahab (Democratic), Hayward city councilwoman
 * Bob Wieckowski (Democratic), state senator

Declined

 * Catharine Baker (Republican), former state assemblywoman
 * Rob Bonta (Democratic), state assemblyman (running for re-election)
 * Ellen Corbett (Democratic), former majority leader of the California State Senate
 * Scott Haggerty (Democratic), Alameda County supervisor
 * Nancy O'Malley (Democratic), Alameda County district attorney
 * Bill Quirk (Democratic), state assemblyman
 * Tim Sbranti (Democratic), former mayor of Dublin

Results
[[File:2020CA15primary.svg|thumb|180px|2020 California's 15th congressional district primary results by county Map legend

{{legend|#3465a4|Swalwell—60–70%}}

{{legend|#729fcf|Swalwell—50–60%}} ]]

District 16
The 16th district is located in central San Joaquin Valley, including the cities of Madera, Merced, and the western half of Fresno. The incumbent was Democrat Jim Costa, who was re-elected with 57.5% of the vote in 2018.

Advanced to general

 * Kevin Cookingham (Republican), former Clovis Unified School District educator
 * Jim Costa (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Esmeralda Soria (Democratic), Fresno City Councilwoman
 * Kimberly Elizabeth Williams (Democratic), former U.S. diplomat and college professor

Endorsements

 * Organizations
 * Fresno County Republican Party


 * Federal politicians
 * Kamala Harris, U.S. senator (D-CA); 2020 vice presidential nominee
 * Organizations
 * Blue Dog Coalition
 * Equality California
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * Planned Parenthood
 * Unions
 * California Teachers Association
 * National Education Association


 * State politicians
 * Anna Caballero, State Senator


 * Individuals
 * Dolores Huerta, labor activist and civil rights leader


 * Labor unions
 * International Association of Fire Fighters Local 753
 * International Brotherhood of Electrical Workers Local 100
 * International Brotherhood of Teamsters Local 431
 * Service Employees International Union California State Council
 * Sheet Metal Workers' International Association Local 162
 * United Brotherhood of Carpenters and Joiners of America Local 701


 * Organizations
 * California Young Democrats
 * Courage California


 * Organizations
 * Brand New Congress

Results
[[File:2020CA16primary.svg|thumb|180px|2020 California's 16th congressional district primary results by county Map legend

{{legend|#87aade|Costa—40–50%}}

{{legend|#de8787|Cookingham—40–50%}}

{{legend|#d35f5f|Cookingham—50–60%}} ]]

District 17
The 17th district encompasses parts of the Silicon Valley, taking in Sunnyvale, Cupertino, Santa Clara, Milpitas, Newark, most of Fremont, and a small part of northern San Jose. The incumbent was Democrat Ro Khanna, who was re-elected with 75.3% of the vote in 2018.

Advanced to general

 * Ro Khanna (Democratic), incumbent U.S. Representative
 * Ritesh Tandon (Republican), businessman

Eliminated in primary

 * Joe Dehn (Libertarian), square dance caller
 * Stephen Forbes (Democratic), business analyst and candidate for California's 17th congressional district in 2018

Endorsements

 * U.S. senators
 * Bernie Sanders (I-VT), 2020 Democratic presidential candidate
 * Organizations
 * California League of Conservation Voters
 * Democratic Socialists of America Silicon Valley
 * Human Rights Campaign
 * Justice Democrats
 * National Iranian American Council
 * Planned Parenthood Action Fund
 * Sierra Club

Results
[[File:2020CA17primary.svg|thumb|upright|2020 California's 17th congressional district primary results by county Map legend

{{legend|#3465a4|Khanna—60–70%}} ]]

District 18
The 18th district encompasses the western San Francisco South Bay and includes the cities of Palo Alto, Redwood City, Menlo Park, Stanford, Los Altos, Mountain View, Campbell, Saratoga, and Los Gatos, as well as part of San Jose. The incumbent was Democrat Anna Eshoo, who was re-elected with 74.5% of the vote in 2018.

Advanced to general

 * Anna Eshoo (Democratic), incumbent U.S. Representative
 * Rishi Kumar (Democratic), Saratoga city councilman

Eliminated in primary

 * Richard B. Fox (Republican), physician
 * Bob Goodwyn (Libertarian), pilot
 * Phil Reynolds (Republican), engineer

Results
[[File:2020CA18primary.svg|thumb|180px|2020 California's 18th congressional district primary results by county Map legend

{{legend|#0084c8|Eshoo—60–70%}}

{{legend|#19aeff|Eshoo—50–60%}} ]]

District 19
The 19th district is based in the eastern San Francisco South Bay centering on San Jose, as well as taking in Morgan Hill. The incumbent was Democrat Zoe Lofgren, who was re-elected with 73.8% of the vote in 2018.

Advanced to general

 * Justin Aguilera (Republican), businessman
 * Zoe Lofgren (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Ignacio Cruz (Republican), economic development director
 * Jason Mallory (no party preference)
 * Ivan Torres (Democratic), healthcare worker

District 20
The 20th district encompasses the Monterey Bay, including Santa Cruz, Salinas, and Gilroy. The incumbent was Democrat Jimmy Panetta, who was re-elected with 81.4% of the vote in 2018.

Advanced to general

 * Jeff Gorman (Republican), financial adviser
 * Jimmy Panetta (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Adam Bolaños Scow (Democratic), environmental activist

Results
[[File:2020CA20primary.svg|thumb|180px|2020 California's 20th congressional district primary results by county Map legend

{{legend|#0084c8|Panetta—60–70%}}

{{legend|#19aeff|Panetta—50–60%}} ]]

District 21
The 21st district covers San Joaquin Valley, including Coalinga, Delano, Hanford, and parts of Bakersfield, specifically East Bakersfield and Downtown Bakersfield. The incumbent was Democrat TJ Cox, who flipped the district and was elected in 2018 with 50.4% of the vote.

Advanced to general

 * TJ Cox (Democratic), incumbent U.S. Representative
 * David Valadao (Republican), former U.S. Representative

Eliminated in primary

 * Ricardo De La Fuente (Democratic), businessman and son of Rocky De La Fuente
 * Rocky De La Fuente (Republican), candidate for U.S. president in 2016 and 2020, and perennial candidate

Declined

 * Ruben Macareno (no party preference), Farmersville city councilman and former chair of the Tulare County Democratic Party

Endorsements

 * Former US Executive Branch officials
 * Barack Obama, former president of the United States (2009–2017), former senator from Illinois (2005–2008)
 * Labor unions
 * California Labor Federation
 * Service Employees International Union California
 * United Farm Workers
 * Organizations
 * 314 Action
 * Asian American Action Fund
 * California Teachers Association
 * End Citizens United
 * Equality California
 * Giffords
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * Indivisible 435
 * J Street PAC
 * League of Conservation Voters Action Fund
 * NARAL Pro-Choice America
 * New Democrat Coalition
 * Planned Parenthood Action Fund
 * Sierra Club
 * Stonewall Democrats


 * Organizations
 * Fresno County Republican Party


 * Publications
 * The Fresno Bee

Results
[[File:2020CA21primary.svg|thumb|180px|2020 California's 21st congressional district primary results by county Map legend

{{legend|#c83737|Valadao—60–70%}}

{{legend|#d35f5f|Valadao—50–60%}}

{{legend|#87aade|Cox—40–50%}} ]]

District 22
The 22nd district covers San Joaquin Valley, including eastern Fresno, Clovis, Tulare, and Visalia. The incumbent was Republican Devin Nunes, who was re-elected with 52.7% of the vote in 2018.

Advanced to general

 * Phil Arballo (Democratic), financial adviser
 * Devin Nunes (Republican), incumbent U.S. Representative

Eliminated in primary

 * Bobby Bliatout (Democratic), healthcare executive and candidate for California's 22nd congressional district in 2018
 * Eric Garcia (no party preference), graduate student
 * Dary Rezvani (Democratic), management consultant

Declined

 * Ricardo Franco (Democratic), candidate for California's 22nd congressional district in 2018
 * Andrew Janz (Democratic), Fresno County prosecutor and nominee for California's 22nd congressional district in 2018 (running for mayor of Fresno)

Endorsements

 * Organizations
 * California League of Conservation Voters
 * Labor unions
 * California Teachers Association


 * Organizations
 * Fresno County Republican Party


 * Organizations
 * National Iranian American Council

Results
[[File:2020CA22primary.svg|thumb|upright|2020 California's 22nd congressional district primary results by county Map legend

{{legend|#ef2929|Nunes—50–60%}} ]]

District 23
The 23rd district is based in the southern Central Valley, taking in parts of Bakersfield, Porterville, California City, Ridgecrest, western Lancaster, Rosamond, and Quartz Hill. The incumbent was House Minority Leader, Republican Kevin McCarthy, who was re-elected with 63.7% of the vote in 2018.

Advanced to general

 * Kim Mangone (Democratic), systems engineer and U.S. Air Force veteran
 * Kevin McCarthy (Republican), incumbent U.S. Representative

Results
[[File:2020CA23primary.svg|thumb|upright|2020 California's 23rd congressional district primary results by county Map legend

{{legend|#cc0000|McCarthy—70–80%}}

{{legend|#ef2929|McCarthy—60–70%}} ]]

District 24
The 24th district is based in the Central Coast and includes San Luis Obispo and Santa Barbara counties. The incumbent was Democrat Salud Carbajal, who was re-elected with 58.6% of the vote in 2018.

Advanced to general

 * Andy Caldwell (Republican), nonprofit executive
 * Salud Carbajal (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Kenneth Young (no party preference), civil engineer

Endorsements

 * State legislators
 * Sam Blakeslee, former state assemblyman
 * Brooks Firestone, former state assemblyman


 * Labor unions
 * California Labor Federation
 * California Teachers Association
 * National Education Association
 * National Union of Healthcare Workers
 * Service Employees International Union California
 * United Farm Workers
 * Organizations
 * Brady Campaign
 * California League of Conservation Voters
 * Coalition to Stop Gun Violence
 * Equality California
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * J Street
 * Planned Parenthood
 * Sierra Club
 * VoteVets

Results
[[File:2020CA24primary.svg|thumb|upright|2020 California's 24th congressional district primary results by county Map legend

{{legend|#3465a4|Carbajal—60–70%}}

{{legend|#729fcf|Carbajal—50–60%}} ]]

District 25
The 25th district is based in northern Los Angeles County and eastern Ventura County, and includes the cities of Santa Clarita, Simi Valley, Palmdale, and eastern Lancaster. The seat was vacant from November 3, 2019, to May 19, 2020. Democrat Katie Hill resigned after she was alleged to have had inappropriate relations with one of her congressional staffers. Hill had flipped the district in 2018 and was elected with 54.4% of the vote. A special election to fill Hill's vacancy was held before the general election in 2020. Republican Mike Garcia won the special election with 54.9% of the vote, and was seated on May 19, 2020.

Advanced to general

 * Mike Garcia (Republican), incumbent U.S. Representative
 * Christy Smith (Democratic), state assemblywoman

Eliminated in primary

 * Otis Lee Cooper (no party preference), legal defense investigator
 * Robert Cooper III (Democratic), college professor
 * Getro Franck Elize (Democratic), patient resource worker
 * Kenneth Jenks (Republican), U.S. Marine Corps veteran and telecommunications executive
 * Steve Knight (Republican), former U.S. Representative
 * David Lozano (Republican), attorney
 * Daniel Mercuri (Republican), businessman
 * George Papadopoulos (Republican), foreign policy adviser for Donald Trump's 2016 presidential campaign
 * Cenk Uygur (Democratic), journalist and CEO and host of The Young Turks
 * Aníbal Valdéz-Ortega (Democratic), attorney and community organizer

Withdrawn

 * Mark Cripe (Republican), Los Angeles County deputy sheriff
 * Christopher C. Smith (Democratic), documentary filmmaker
 * Angela Underwood-Jacobs (Republican), Lancaster city councilwoman
 * Suzette Valladares (Republican), businesswoman

General election

 * Generic Republican v.s. Generic Democrat

Results
[[File:2020CA25primary.svg|thumb|upright|2020 California's 25th congressional district primary results by county Map legend

{{legend|#afc6e9|Smith—30–40%}} ]]

District 26
The 26th district is based in the southern Central Coast and is located entirely within Ventura County, taking in Camarillo, Oxnard, Ventura, Santa Paula, Thousand Oaks, Westlake Village, Moorpark, and parts of Simi Valley. The incumbent was Democrat Julia Brownley, who was re-elected with 61.9% of the vote in 2018.

Advanced to general

 * Ronda Baldwin-Kennedy (Republican), attorney and candidate for California State Assembly in 2018
 * Julia Brownley (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Enrique Petris (Democratic), contract administrator
 * Robert L. Salas (Democratic), retired teacher

Endorsements

 * Organizations
 * California League of Conservation Voters
 * Human Rights Campaign
 * Sierra Club

Results
[[File:2020CA26primary.svg|thumb|upright|2020 California's 26th congressional district primary results by county Map legend

{{legend|#729fcf|Brownley—50–60%}} ]]

District 27
The 27 district encompasses the San Gabriel Valley, including Alhambra, Altadena, Arcadia, Bradbury, Claremont, East Pasadena, Glendora, Monrovia, Monterey Park, Pasadena, Rosemead, San Antonio Heights, San Gabriel, San Marino, Sierra Madre, South Pasadena, South San Gabriel, Temple City, and Upland. The incumbent was Democrat Judy Chu, who was re-elected with 79.2% of the vote in 2018.

Advanced to general

 * Judy Chu (Democratic), incumbent U.S. Representative
 * Johnny J. Nalbandian (Republican), entrepreneur and candidate for California's 28th congressional district in 2018

Eliminated in primary

 * Beatrice Cardenas (Republican), loan officer
 * Christian Daly (no party preference), former Duarte city manager intern

Results
[[File:2020CA27primary.svg|thumb|180px|2020 California's 27th congressional district primary results by county Map legend

{{legend|#2c5aa0|Chu—70–80%}}

{{legend|#87aade|Chu—40–50%}} ]]

District 28
The 28th district is based in the San Fernando Valley and includes West Hollywood, Burbank, parts of Pasadena, Glendale, the Verdugo Hills communities of Sunland and Tujunga, as well as parts of central Los Angeles including Hollywood, the Hollywood Hills, Echo Park, Silver Lake, and Los Feliz. The incumbent was Democrat Adam Schiff, who was re-elected with 78.4% of the vote in 2018.

Advanced to general

 * Eric Early (Republican), attorney and candidate for Attorney General of California in 2018
 * Adam Schiff (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Chad D. Anderson (Democratic), entrepreneur
 * Jennifer Barbosa (no party preference), realtor and activist
 * William Bodell (Republican), businessman
 * Sal Genovese (Democratic), community services director
 * Maebe A. Girl (Democratic), Silver Lake neighborhood councilwoman and drag queen
 * Ara Khachig Manoogian (Democratic), security systems integrator

Endorsements

 * Individuals
 * David Slack, writer and activist
 * Organizations
 * California League of Conservation Voters
 * California Teachers Association
 * Human Rights Campaign
 * Planned Parenthood Action Fund
 * Sierra Club


 * Individuals
 * Willam Belli, drag queen
 * Grimes, musician
 * HANA, musician
 * Sarah Silverman, comedian and actress


 * Organizations
 * Ground Game LA
 * Our Revolution Los Angeles

District 29
The 29th district is based in the eastern San Fernando Valley, taking in the city of San Fernando as well as the Los Angeles communities of Van Nuys, Pacoima, Arleta, Panorama City, Sylmar and parts of Sun Valley and North Hollywood. The incumbent was Democrat Tony Cárdenas, who was re-elected with 80.6% of the vote in 2018.

Advanced to general

 * Tony Cárdenas (Democratic), incumbent U.S. Representative
 * Angélica Dueñas (Democratic), member of the Sun Valley Neighborhood council

Eliminated in primary

 * Michael R. Guzik (Democratic), ride-share driver
 * Brian Perras (Republican), U.S. Navy veteran

Endorsements

 * Labor unions
 * California Labor Federation
 * California Teachers Association
 * National Union of Healthcare Workers
 * Service Employees International Union California
 * United Farm Workers


 * Organizations
 * California League of Conservation Voters
 * Equality California
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * Planned Parenthood Action Fund
 * Sierra Club


 * Individuals
 * Marianne Williamson, author, spiritual leader, and activist; candidate for President in 2020; Independent candidate for U.S. representative from CA-33 in 2014


 * Labor unions
 * American Federation of Musicians – Local 47


 * Organizations
 * Americans for Democratic Action
 * Our Revolution – Los Angeles
 * Our Revolution – Santa Clarita
 * Progressive Democrats of America
 * Sunrise Movement – Los Angeles

District 30
The 30th district is based in the western San Fernando Valley, including the Los Angeles neighborhoods of Canoga Park, Chatsworth, Encino, Granada Hills, Northridge, Porter Ranch, Reseda, Sherman Oaks, Studio City, Tarzana, Toluca Lake, West Hills, Winnetka, and Woodland Hills, as well as Calabasas, Bell Canyon, and Hidden Hills. The incumbent was Democrat Brad Sherman, who was re-elected with 73.4% of the vote in 2018.

Advanced to general

 * Mark S. Reed (Republican), businessman and perennial candidate
 * Brad Sherman (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Courtney "CJ" Berina (Democratic), marketing consultant
 * Brian T. Carroll (Democratic)
 * Raji Rab (Democratic), commercial pilot and candidate for California's 30th congressional district in 2018

Results
[[File:2020CA30primary.svg|thumb|180px|2020 California's 30th congressional district primary results by county Map legend

{{legend|#5f8dd3|Sherman—50–60%}}

{{legend|#87aade|Sherman—40–50%}} ]]

District 31
The 31st district encompasses parts of the Inland Empire, including San Bernardino, Rancho Cucamonga, Redlands, and parts of Rialto. The incumbent was Democrat Pete Aguilar, who was re-elected with 58.7% of the vote in 2018.

Advanced to general

 * Pete Aguilar (Democratic), incumbent U.S. Representative
 * Agnes Gibboney (Republican), activist and angel mom

District 32
The 32nd district takes in the eastern San Gabriel Valley, including Baldwin Park, El Monte, West Covina, San Dimas, Azusa, and southern Glendora. The incumbent was Democrat Grace Napolitano, who was re-elected with 68.8% of the vote in 2018.

Advanced to general

 * Grace Napolitano (Democratic), incumbent U.S. Representative
 * Joshua M. Scott (Republican), political strategist and candidate for California's 32nd congressional district in 2018

Eliminated in primary

 * Emanuel Gonzales (Democratic), dialysis technician
 * Meshal "Kash" Kashifalghita (Democratic), U.S. Army Reserve officer
 * Raul Ali Madrigal (Democratic, write-in), USMC veteran

District 33
The 33rd district spans the coastal region of Los Angeles County, including the Beach Cities, Westside Los Angeles, and the Palos Verdes Peninsula. The incumbent was Democrat Ted Lieu, who was re-elected with 70.0% of the vote in 2018.

Advanced to general

 * James P. Bradley (Republican), businessman and candidate for U.S. Senate in 2018
 * Ted Lieu (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Liz Barris (Democratic), nonprofit director
 * Albert Maxwell Goldberg (Democratic), candidate for California's 26th congressional district in 2012
 * Sarah Sun Liew (Republican), businesswoman
 * Kenneth W. Wright (no party preference), ophthalmology surgeon

Endorsements

 * Organizations
 * California League of Conservation Voters
 * California Teachers Association
 * Human Rights Campaign
 * Planned Parenthood Action Fund
 * Sierra Club

District 34
The 34th district is located entirely in the city of Los Angeles and includes the Central, East, and Northeast neighborhoods, such as Chinatown, Downtown, Eagle Rock, and Koreatown. The incumbent was Democrat Jimmy Gomez, who was re-elected with 72.5% of the vote in 2018.

Advanced to general

 * Jimmy Gomez (Democratic), incumbent U.S. Representative
 * David Kim (Democratic), MacArthur Park neighborhood council board-member

Eliminated in primary

 * Frances Yasmeen Motiwalla (Democratic), activist (endorsed Kim)
 * Keanakay Scott (Democratic), author
 * Joanne L. Wright (Republican)

Endorsements

 * Organizations
 * California League of Conservation Voters
 * Equality California
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * Planned Parenthood
 * Progressive Action PAC (Congressional Progressive Caucus)
 * Sierra Club
 * Unions
 * California Labor Federation
 * California Teachers Association
 * Service Employees International Union California


 * Individuals
 * Marianne Williamson, former 2020 Democratic presidential candidate, author and spiritual leader
 * Andrew Yang, former 2020 Democratic presidential candidate and non-profit leader
 * Organizations
 * Humanity Forward
 * Our Revolution – Los Angeles chapter
 * Sunrise Movement – Los Angeles chapter

Results
[[File:2020CA34primary.svg|thumb|300px|2018 California's 34th congressional district primary results by county supervisorial district Map legend

{{legend|#0083d7|Gomez—50–60%}}

{{legend|#0099ff|Gomez—40–50%}} ]]

District 35
The 35th district takes in southwestern San Bernardino County, including Chino, Fontana, Montclair, Ontario, as well as Pomona. The incumbent was Democrat Norma Torres, who was re-elected with 69.4% of the vote in 2018.

Advanced to general

 * Mike Cargile (Republican), independent filmmaker
 * Norma Torres (Democratic), incumbent U.S. Representative

Results
[[File:2020CA35primary.svg|thumb|180px|2020 2020 California's 35th congressional district primary results by county Map legend

{{legend|#005c94|Torres—70–80%}}

{{legend|#0084c8|Torres—60–70%}} ]]

District 36
The 36th district encompasses eastern Riverside County, including the desert communities of Palm Springs, Palm Desert, Indio, Coachella, Rancho Mirage, Desert Hot Springs, Indian Wells, and Cathedral City, as well as Calimesa, Banning, Beaumont, San Jacinto, and Hemet. The incumbent was Democrat Raul Ruiz, who was re-elected with 59.0% of the vote in 2018.

Advanced to general

 * Erin Cruz (Republican), author and candidate for U.S. Senate in 2018
 * Raul Ruiz (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Patrice Kimbler (Republican)
 * Milo Stevanovich (Republican), attorney

Withdrawn

 * Raul Ruiz (Republican)

District 37
The 37th district encompasses west and southwest Los Angeles, as well as Culver City and Inglewood. The incumbent was Democrat Karen Bass, who was re-elected with 89.1% of the vote in 2018.

Advanced to general

 * Karen Bass (Democratic), incumbent U.S. Representative
 * Errol Webber (Republican), documentary film producer

Eliminated in primary

 * Larry Thompson (no party preference), attorney

District 38
The 38th district takes encompasses southeastern Los Angeles County, as well as a small sliver of Orange County, taking in La Palma. The incumbent was Democrat Linda Sánchez, who was re-elected with 68.9% of the vote in 2018.

Advanced to general

 * Linda Sánchez (Democratic), incumbent U.S. Representative
 * Michael Tolar (Democratic), retail store worker

Results
[[File:2020CA38primary.svg|thumb|upright|2020 California's 38th congressional district primary results by county Map legend

{{legend|#005c94|Sánchez—70–80%}} ]]

District 39
The 39th district encompasses parts of the San Gabriel Valley, taking in La Habra Heights, Diamond Bar, Walnut, Hacienda Heights and Rowland Heights, as well as northern Orange County, including Fullerton, La Habra, Brea, Buena Park, Placentia, and Yorba Linda (the hometown of Republican president Richard Nixon). The district also takes in a small portion of southwestern San Bernardino County, covering Chino Hills. The incumbent representative, Democrat Gil Cisneros, who flipped the district and was elected in 2018, lost reelection to Republican candidate Young Kim. Kim became one of the first three Korean-American women elected to Congress.

Advanced to general

 * Gil Cisneros (Democratic), incumbent U.S. Representative
 * Young Kim (Republican), former state assemblywoman and candidate for California's 39th congressional district in 2018

Eliminated in primary

 * Steve Cox (no party preference), motorcycle journalist and candidate for California's 39th congressional district in 2018

Endorsements

 * Former US Executive Branch officials
 * Barack Obama, former president of the United States (2009–2017, former senator from Illinois (2005–2008)
 * Organizations
 * Asian American Action Fund
 * Brady Campaign
 * California League of Conservation Voters
 * Council for a Livable World
 * End Citizens United
 * Human Rights Campaign
 * League of Conservation Voters Action Fund
 * Planned Parenthood Action Fund
 * Sierra Club


 * U.S. representatives
 * Kevin McCarthy, House Minority Leader, U.S. representative from CA-23 (2013–present), CA-22 (2007–2013)
 * Gary Miller, former U.S. representative from CA-31 from (1999–2015)


 * Municipal officials
 * Kathryn Barger, Los Angeles County Supervisor (2016–present)


 * Organizations
 * Howard Jarvis Taxpayers Association PAC
 * Maggie's List
 * Susan B. Anthony List
 * Tea Party Express
 * United States Chamber of Commerce


 * Newspapers
 * Orange County Register

General election

 * with generic Republican

Results
[[File:2020CA39primary.svg|thumb|215px|upright|2020 California's 39th congressional district primary results by county Map legend

{{legend|#d35f5f|Kim—50–60%}}

{{legend|#de8787|Kim—40–50%}}

{{legend|#5f8dd3|Cisneros—50–60%}} ]]

District 40
The 40th district is centered around East Los Angeles and also includes Downey, Bellflower, and Commerce. The incumbent was Democrat Lucille Roybal-Allard, who was re-elected with 77.3% of the vote in 2018.

Advanced to general

 * C. Antonio Delgado (Republican), immigration attorney
 * Lucille Roybal-Allard (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Rodolfo Cortes Barragan (Green), scientist and candidate for California's 40th congressional district in 2018
 * Anthony Felix Jr. (Democratic), homeless services analyst
 * Michael Donnell Graham Jr. (American Independent)
 * David John Sanchez (Democratic), teacher, activist, and founding member of the Brown Berets

District 41
The 41st district is located in the Inland Empire and takes in western Riverside County, including Jurupa Valley, Moreno Valley, Perris, and Riverside. The incumbent was Democrat Mark Takano, who was re-elected with 65.1% of the vote in 2018.

Advanced to general

 * Aja Smith (Republican), U.S. Air Force veteran and candidate for California's 41st congressional district in 2018
 * Mark Takano (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Grace Williams (Democratic), former Perris city official

Endorsements

 * Organizations
 * California League of Conservation Voters
 * Human Rights Campaign
 * LGBTQ Victory Fund
 * Sierra Club

District 42
The 42nd district is encompasses western and southwestern Riverside County, and includes Eastvale, Norco, Corona, Temescal Valley, Lake Elsinore, Canyon Lake, Wildomar, north Temecula, Murrieta and Menifee. The incumbent was Republican Ken Calvert, who was re-elected with 56.5% of the vote in 2018.

Advanced to general

 * Ken Calvert (Republican), incumbent U.S. Representative
 * William "Liam" O'Mara (Democratic), historian and college professor

Eliminated in primary

 * Regina Marston (Democratic), businesswoman

Withdrew

 * Julia Peacock (Democratic), public high school teacher and candidate for California's 42nd congressional district in 2018

District 43
The 43rd district is based in southern Los Angeles County and includes portions of Los Angeles and Torrance, as well as all of Hawthorne, Lawndale, Gardena, Inglewood and Lomita. The incumbent was Democrat Maxine Waters, who was re-elected with 77.7% of the vote in 2018.

Advanced to general

 * Joe Collins III (Republican), U.S. Navy veteran
 * Maxine Waters (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Omar Navarro (Republican), businessman and candidate for California's 43rd congressional district in 2016 and 2018

Endorsements

 * U.S. Executive Branch officials
 * Donald Trump, 45th president of the United States
 * U.S. representatives
 * Andy Biggs, U.S. representative from Arizona's 5th congressional district
 * State representatives
 * Anthony Sabatini, Florida representative from the 32nd House district

District 44
The 44th district is based in southern Los Angeles County and includes Carson, Compton, Lynwood, North Long Beach, and San Pedro. The incumbent was Democrat Nanette Barragán, who was re-elected with 68.3% of the vote in 2018.

Advanced to general

 * Nanette Barragán (Democratic), incumbent U.S. Representative
 * Analilia Joya (Democratic), teacher and disability advocate

Eliminated in primary

 * Billy Z. Earley (Republican), healthcare advocate
 * Morris F. Griffin (Democratic), maintenance technician

District 45
The 45th district is based in central Orange County, encompassing Irvine, Tustin, North Tustin, Villa Park, Anaheim Hills, eastern Orange, Laguna Hills, Laguna Woods, Lake Forest, Rancho Santa Margarita, Coto de Caza and Mission Viejo. The incumbent was Democrat Katie Porter, who flipped the district and was elected with 52.1% of the vote in 2018.

Advanced to general

 * Katie Porter (Democratic), incumbent U.S. Representative
 * Greg Raths (Republican), retired United States Marine Corps Colonel, former mayor of Mission Viejo and candidate for California's 45th congressional district in 2014 and 2016

Eliminated in primary

 * Rhonda Furin (Republican), special education teacher
 * Christopher J. Gonzales (Republican), attorney and U.S. Army veteran
 * Peggy Huang (Republican), Yorba Linda city councilwoman and former mayor of Yorba Linda
 * Don Sedgwick (Republican), mayor of Laguna Hills
 * Lisa Sparks (Republican), Orange County Department of Education trustee and Chapman University professor

Withdrew

 * Ray Gennawey (Republican), Orange County prosecutor
 * Brenton Woolworth (Republican), businessman

Declined

 * Mimi Walters (Republican), former U.S. Representative

Endorsements

 * Former US Executive Branch officials
 * Barack Obama, former president of the United States (2009–2017), former senator from Illinois (2005–2008)
 * Organizations
 * California League of Conservation Voters
 * California Teachers Association
 * Democracy for America
 * EMILY's List
 * Human Rights Campaign
 * League of Conservation Voters Action Fund
 * National Iranian American Council
 * Planned Parenthood Action Fund
 * Sierra Club


 * U.S. Representatives
 * Jack Bergman, U.S. representative (MI-1) and retired Marine lt. general
 * Mary Bono, former U.S. representative (CA-44), (CA-45)
 * Paul J. Cook, U.S. representative (CA-8) and retired Marine colonel
 * Barry Goldwater Jr., former U.S. representative (CA-20), (CA-27)


 * State officials
 * Travis Allen, former California State Assemblyman and candidate for Governor of California in 2018


 * County officials
 * Donald P. Wagner, Orange County Supervisor and former California State Assemblyman


 * Local officials
 * Brian Maryott, Mayor of San Juan Capistrano and candidate for California's 49th Congressional District


 * Retired military officers
 * Michael J. Aguilar, retired United States Marine Corps brigadier general
 * John K. Davis, retired United States Marine Corps four-star general
 * Timothy F. Ghormley, retired United States Marine Corps major general
 * Keith J. Stalder, retired United States Marine Corps general


 * Others
 * Kelly Ernby, Orange County Deputy District Attorney and candidate for California State Assembly
 * Ray Gennawey, former candidate for California's 45th Congressional District in 2020 and Orange County Deputy District Attorney
 * Organizations
 * Combat Veterans for Congress
 * Greater Irvine Republicans
 * SEALPAC

Results
[[File:2020CA45primary.svg|thumb|250px|2020 California's 45th congressional district primary results by county supervisorial district Map legend

{{legend|#0083d7|Porter—50–60%}}

{{legend|#0099ff|Porter—40–50%}}

{{legend|#000000|No votes}} ]]

District 46
The 46th district is based in north-central Orange County, taking in Anaheim, Santa Ana, western Orange, and eastern Garden Grove. The incumbent was Democrat Lou Correa, who was reelected with 69.1% of the vote in 2018.

Advanced to general

 * Lou Correa (Democratic), incumbent U.S. Representative
 * James S. Waters (Republican), retired postman

Eliminated in primary

 * Will Johnson (no party preference), caregiver
 * Pablo Mendiolea (Democratic), businessman
 * Ed Rushman (no party preference), IT project manager and candidate for California's 46th congressional district in 2018 (American Solidarity)

Results
[[File:2020CA46primary.svg|thumb|250px|2020 California's 46th congressional district primary results by county supervisorial district Map legend

{{legend|#3465a4|Correa—60–70%}}

{{legend|#729fcf|Correa—50–60%}} ]]

District 47
The 47th district is centered in Long Beach and extends into northwestern Orange County, taking in parts of Garden Grove and Westminster, and taking all of Stanton, Los Alamitos, and Cypress. The incumbent was Democrat Alan Lowenthal, who was reelected with 64.9% of the vote in 2018.

Advanced to general

 * John Briscoe (Republican), Ocean View School District trustee and candidate for California's 47th congressional district in 2018
 * Alan Lowenthal (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Jalen Dupree McLeod (Democratic), teaching assistant
 * Peter Mathews (Democratic), Cypress College political science professor
 * Sou Moua (Republican), planning commissioner
 * Amy Phan West (Republican), candidate for Westminster city council in 2018 and former member of Orange County Parks Commission

Endorsements

 * Labor unions
 * California Federation of Teachers
 * California Labor Federation
 * California Teachers Association
 * National Education Association
 * National Nurses United
 * National Union of Healthcare Workers
 * Organizations
 * Brady Campaign
 * California League of Conservation Voters
 * Equality California
 * Human Rights Campaign
 * Humane Society of the United States Legislative Fund
 * J Street PAC
 * National Organization for Women
 * Peace Action
 * Planned Parenthood Action Fund
 * Sierra Club
 * Stonewall Democrats


 * Organizations
 * Brand New Congress

Results
[[File:2020CA47primary.svg|thumb|225px|2020 California's 47th congressional district primary results by county Map legend

{{legend|#87aade|Lowenthal—40–50%}}

{{legend|#afc6e9|Lowenthal—30–40%}} ]]

District 48
The 48th district encompasses coastal Orange County, taking in Seal Beach, Sunset Beach, Huntington Beach, Midway City, Fountain Valley, Costa Mesa, Newport Beach, Laguna Beach, Aliso Viejo, and Laguna Niguel, as well as parts of Westminster and Garden Grove. The incumbent was Democrat Harley Rouda, who flipped the district and was elected with 53.6% of the vote in 2018.

Advanced to general

 * Harley Rouda (Democratic), incumbent U.S. Representative
 * Michelle Steel (Republican), Orange County Chair supervisor

Eliminated in primary

 * Brian Burley (Republican), information technology entrepreneur
 * Christopher Engels (Republican), businessman
 * James Brian Griffin (Republican), real estate broker
 * Richard Mata (American Independent), retired teacher
 * John Thomas Schuesler (Republican), mortgage consultant

Withdrew

 * James Bradley (Republican), businessman and candidate for U.S. Senate in 2018 (running for California's 33rd congressional district)

Declined

 * Scott Baugh (Republican), former chair of the Orange County Republican Party and candidate for California's 48th congressional district in 2018
 * Janet Nguyen (Republican), former state senator

Endorsements

 * Former US Executive Branch officials
 * Barack Obama, former president of the United States (2009–2017), former senator from Illinois (2005–2008)


 * Labor unions
 * Service Employees International Union California


 * Organizations
 * Asian American Action Fund
 * California League of Conservation Voters
 * Council for a Livable World
 * End Citizens United
 * Human Rights Campaign
 * League of Conservation Voters Action Fund
 * Planned Parenthood Action Fund
 * Sierra Club


 * Politicians
 * Newt Gingrich, former U.S Representative (GA-6) and former Speaker of the House


 * Organizations
 * Maggie's List
 * New York Young Republican Club
 * Susan B. Anthony List

General election

 * with Brian Burley


 * with Generic Opponent

Results
[[File:2020CA48primary.svg|thumb|200px|2020 California's 48th congressional district primary results by county supervisorial district Map legend

{{legend|#0083d7|Rouda—50–60%}}

{{legend|#0099ff|Rouda—40–50%}} ]]

District 49
The 49th district encompasses the northern coastal areas of San Diego County, including the cities of Oceanside, Vista, Carlsbad, and Encinitas, as well as a small part of southern Orange County, taking in Dana Point, Ladera Ranch, San Clemente, and San Juan Capistrano. The incumbent was Democrat Mike Levin, who flipped the district and was elected with 56.4% of the vote in 2018.

Advanced to general

 * Mike Levin (Democratic), incumbent U.S. Representative
 * Brian Maryott (Republican), San Juan Capistrano councilman, former mayor of San Juan Capistrano, and candidate for California's 49th congressional district in 2018

Declined

 * Kristin Gaspar (Republican), San Diego County supervisor, former mayor of Encinitas, and candidate for California's 49th congressional district in 2018

Results
[[File:2020CA49primary.svg|thumb|225px|2020 California's 49th congressional district primary results by county Map legend

{{legend|#729fcf|Levin—50–60%}}

{{legend|#ef2929|Maryott—50–60%}} ]]

District 50
The 50th district covers inland San Diego County consisting of suburban and outlying areas of the county, including Fallbrook, San Marcos, Valley Center, Ramona, Escondido, Santee, Lakeside, parts of El Cajon and a slice of southwestern Riverside County, taking in parts of Temecula. The incumbent was Republican Duncan D. Hunter, who was re-elected with 51.7% of the vote in 2018. On December 3, 2019, Hunter pleaded to guilty to campaign finance violations and resigned from office effective January 13, 2020.

Advanced to general

 * Ammar Campa-Najjar (Democratic), former Department of Labor official and candidate for California's 50th congressional district in 2018
 * Darrell Issa (Republican), former U.S. Representative for California's 49th congressional district

Eliminated in primary

 * José Cortés (Peace and Freedom), community organizer
 * Carl DeMaio (Republican), former San Diego city councilman and candidate for California's 52nd congressional district in 2014
 * Helen L. Horvath (no party preference), psychologist
 * Lucinda KWH Jahn (no party preference), entertainment industry professional
 * Brian W. Jones (Republican), state senator
 * Henry Alan Ota (no party preference), farmer
 * Nathan "Nate" Wilkins (Republican), retired U.S. Navy SEAL

Withdrew

 * Sam Abed (Republican), former mayor of Escondido
 * Alex Balkin (Democratic), former U.S. Navy Inspector General
 * Marisa Calderon (Democratic), executive director of the National Association of Hispanic Real Estate Professionals
 * Duncan D. Hunter (Republican), former U.S. Representative
 * Bill Wells (Republican), mayor of El Cajon and candidate for California's 50th congressional district in 2018
 * Larry Wilske (Republican), retired Navy SEAL

Declined

 * Joel Anderson (Republican), former state senator
 * Matt Rahn (Republican), Temecula city councilman and former mayor of Temecula

Endorsements

 * Executive Branch officials
 * Joe Biden, 47th vice president of the United States; President of the United States
 * John Howard Dalton, former U.S. Secretary of the Navy 1993–1998
 * Barack Obama, former president of the United States (2009–2017, former senator from Illinois (2005–2008)


 * Federal politicians
 * Tony Cárdenas, U.S. representative from CA-29 since 2013
 * Susan Davis, U.S. representative from CA-49 2001–2003 and CA-53 since 2003
 * Katie Hill, former U.S. representative from CA-25 2019–2019
 * Jared Huffman, U.S. representative from CA-02 since 2013
 * Barbara Lee, U.S. representative from CA-09 1998–2013 and CA-13 since 2013
 * Mike Levin, U.S. representative from CA-49 since 2019
 * Scott Peters, U.S. representative from CA-52 since 2013
 * Katie Porter, U.S. representative from CA-45 since 2019
 * Adam Schiff, U.S. representative from CA-27 2001–2003, CA-29 2003–2013, and CA-28 since 2013; Chair of the House Intelligence Committee since 2019
 * Eric Swalwell, U.S. representative from CA-15 since 2013; candidate for President in 2020
 * Juan Vargas, U.S. representative from CA-51 since 2013


 * State politicians
 * Lorena Gonzalez, California Assemblywoman from District 80 since 2013
 * Betty Yee, Controller of California since 2015


 * Local politicians
 * Nathan Fletcher, member of the San Diego County Board of Supervisors from District 4 since 2019
 * Georgette Gomez, San Diego City Councilwoman from District 9 since 2016; President of the San Diego City Council since 2018
 * Organizations
 * California Labor Federation
 * California League of Conservation Voters
 * California Teachers Association
 * Democracy for America
 * End Citizens United
 * Equality California
 * Planned Parenthood
 * Service Employees International Union
 * Sierra Club


 * Federal politicians
 * Ken Calvert, U.S. representative from CA-42 2013–present, CA-44 2003–2013, CA-43 1993–2003
 * Paul Cook, U.S. representative from CA-8
 * Newt Gingrich, former Speaker of the United States House of Representatives and U.S. representative from GA-6
 * Mike Huckabee, former governor of Arkansas
 * Duncan Hunter, former U.S. representative from CA-42 1981–1983, CA-45 1983–1993, and CA-52 1993–2009; candidate for President in 2008; father of incumbent Duncan D. Hunter
 * Doug LaMalfa, U.S. representative from CA-1
 * Kevin McCarthy, House Minority Leader, U.S. representative from CA-23 2013–present, CA-22 2007–2013
 * Tom McClintock, U.S. representative from CA-4
 * Devin Nunes, U.S. representative from CA-22 2013–present, CA-21 2003–2013
 * Tim Scott, United States Senator from South Carolina
 * Donald Trump, President of the United States


 * State and local politicians
 * Kevin Faulconer, Mayor of San Diego

Primary election

 * with Duncan Hunter

General election

 * with DeMaio and Issa


 * with Generic Republican and Generic Democrat

Results
[[File:2020CA50primary.svg|thumb|225px|2020 California's 50th congressional district primary results by county Map legend

{{legend|#afc6e9|Campa-Najjar—30–40%}} ]]

District 51
The 51st district runs along the border with Mexico and includes Imperial County and southern San Diego, including western Chula Vista, Imperial Beach, and National City. The incumbent was Democrat Juan Vargas, who was re-elected with 71.2% of the vote in 2018.

Advanced to general

 * Juan Hidalgo Jr. (Republican), U.S. Marine Corps veteran and candidate for California's 51st congressional district in 2016 & 2018
 * Juan Vargas (Democratic), incumbent U.S. Representative

Endorsements

 * Organizations
 * Combat Veterans for Congress


 * Organizations
 * California League of Conservation Voters
 * California Teachers Association
 * Human Rights Campaign
 * Planned Parenthood Action Fund
 * Sierra Club

Results
[[File:2020CA51primary.svg|thumb|250px|2020 California's 51st congressional district primary results by county Map legend

{{legend|#204a87|Vargas—70–80%}}

{{legend|#3465a4|Vargas—60–70%}} ]]

District 52
The 52nd district is based in San Diego County, including coastal and central portions of the city of San Diego in addition to Carmel Valley, La Jolla, Point Loma, downtown San Diego, and the suburbs of Poway and Coronado. The incumbent was Democrat Scott Peters, who was re-elected with 63.8% of the vote in 2018.

Advanced to general

 * Jim DeBello (Republican), former CEO of Mitek Systems
 * Scott Peters (Democratic), incumbent U.S. Representative

Eliminated in primary

 * Nancy L. Casady (Democratic), California Department of Food and Agriculture board-member
 * Ryan Cunningham (no party preference), public finance banker

District 53
The 53rd district encompasses eastern San Diego and its eastern suburbs, including, eastern Chula Vista, western El Cajon, Bonita, La Mesa, Lemon Grove, and Spring Valley. The incumbent was Democrat Susan Davis, who was re-elected with 69.1% of the vote in 2018. On September 4, 2019, Davis announced she would not seek re-election.

Advanced to general

 * Georgette Gómez (Democratic), president of the San Diego City Council
 * Sara Jacobs (Democratic), candidate for California's 49th congressional district in 2018, policy advisor for the Hillary Clinton 2016 presidential campaign, and granddaughter of Qualcomm founder Irwin Jacobs

Eliminated in primary

 * John Brooks (Democratic), biologist
 * Jose Caballero (Democratic), political consultant
 * Joseph R. Fountain (Democratic), special education teacher
 * Fernando Garcia (no party preference), businessman
 * Janessa Goldbeck (Democratic), human rights activist and U.S. Marine veteran
 * Eric Roger Kutner (Democratic), policy advisor
 * Annette Meza (Democratic), educator
 * Michael Patrick Oristian (Republican), software developer
 * Famela Ramos (Republican), nurse
 * Suzette Santori (Democratic), ride-share driver
 * Chris Stoddard (Republican), realtor
 * Joaquín Vazquez (Democratic), community advocate
 * Tom Wong (Democratic), political science professor at UC San Diego

Declined

 * Toni Atkins (Democratic), president pro tempore of the California State Senate (endorsed Gomez)
 * Susan Davis (Democratic), incumbent U.S. Representative
 * Nathan Fletcher (Democratic), San Diego County supervisor and former state representative (endorsed Gomez)
 * Todd Gloria (Democratic), state assemblyman (running for mayor of San Diego, endorsed Gomez )
 * Lorena Gonzalez (Democratic), state assemblywoman (endorsed Gomez)
 * Morgan Murtaugh (Republican), former OAN political commentator and candidate for California's 53rd congressional district in 2018 (endorsed Jacobs)

Endorsements

 * U.S. senators
 * Catherine Cortez Masto (D-NV)
 * Bernie Sanders (I-VT), 2020 Democratic presidential candidate
 * Elizabeth Warren (D-MA), 2020 Democratic presidential candidate


 * U.S. representatives
 * Pete Aguilar, Representative from CA-31
 * Nanette Barragán, Representative from CA-44
 * Salud Carbajal, Representative from CA-24
 * Tony Cardenas, Representative from CA-29
 * David Cicilline, Representative from RI-1
 * Lou Correa, Representative from CA-46
 * Pramila Jayapal, Representative from WA-7
 * Ro Khanna, Representative from CA-17
 * Alan Lowenthal, Representative from CA-47
 * Alexandria Ocasio-Cortez, Representative from NY-14
 * Mark Pocan, Representative from WI-2
 * Jamie Raskin, Representative from MD-8
 * Mark Takano, Representative from CA-41
 * Juan Vargas, Representative from CA-51
 * Maxine Waters, Representative from CA-43


 * State officials
 * John Chiang, former California State Treasurer and former California State Controller
 * Fiona Ma, current California State Treasurer
 * Betty Yee, current California State Controller


 * State legislators
 * Toni Atkins, President pro tempore of the California State Senate and state senator from SD-39
 * Willie Brown, former Speaker of the California State Assembly and former mayor of San Francisco
 * Kevin de León, former President pro tempore of the California State Senate
 * Todd Gloria, State Assemblyman from SA-78
 * Lorena Gonzalez, State Assemblywomen from SA-80
 * Tasha Boerner Horvath, State Assemblywomen from SA-76
 * Ben Hueso, state senator from SD-40
 * Christine Kehoe, former state senator from SD-39
 * Anthony Rendon, Speaker of the California State Assembly and State Assemblyman from SA-63
 * Shirley Weber, State Assemblywomen from SA-79
 * Scott Wiener, state senator from SD-11


 * Local officials
 * David Alvarez, former member of the San Diego City Council
 * Barbara Bry, member of the San Diego City Council
 * Serge Dedina, current mayor of Imperial Beach
 * Mara Elliott, San Diego City Attorney
 * Nathan Fletcher, San Diego County Supervisor and former State Assemblyman
 * Robert Garcia, current mayor of Long Beach
 * Jim Madaffer, former member of the San Diego City Council, current chair of the San Diego County Water Authority, and current commissioner on the California Transportation Commission
 * Monica Montgomery, member of the San Diego City Council
 * Steve Padilla, former mayor of Chula Vista
 * Mary Salas, current mayor of Chula Vista and former State Assemblywomen


 * Organizations
 * BOLD PAC
 * California Democratic Party
 * California League of Conservation Voters
 * Congressional Progressive Caucus
 * Democratic Majority For Israel (DMFI PAC)
 * Equality California
 * Equality PAC
 * Human Rights Campaign
 * Justice Democrats
 * LGBTQ Victory Fund
 * Our Revolution
 * Progressive Change Campaign Committee
 * Sierra Club


 * Labor unions
 * AFSCME
 * AFT California
 * Laborers' International Union of North America San Diego
 * National Education Association
 * National Union of Healthcare Workers
 * Southwest Regional Council of Carpenters
 * UNITE HERE


 * Others
 * Dolores Huerta, labor leader and co-founder of the National Farm Workers Association
 * Mondaire Jones, 2020 Democratic nominee for New York's 17th congressional district


 * U.S. representatives
 * Colin Allred, representative from TX-32
 * Ami Bera, representative from CA-07
 * TJ Cox, representative from CA-21
 * Abby Finkenauer, representative from IA-01
 * Lois Frankel, representative from FL-21
 * Andy Kim, representative from NJ-03
 * Katie Porter, representative from CA-45
 * Harley Rouda, representative from CA-48
 * Eric Swalwell, representative from CA-15


 * State officials
 * Eleni Kounalakis, Lieutenant Governor of California
 * Jared Polis, Governor of Colorado


 * Newspapers
 * San Diego Union-Tribune


 * Organizations
 * Common Defense
 * Council for a Livable World
 * Foreign Policy for America