2018 Arizona elections

A general election was held in the U.S. state of Arizona on November 6, 2018. All of Arizona's executive offices were up for election as well as a United States Senate seat and all of Arizona's nine seats in the United States House of Representatives. The Republican Party won the majority of statewide offices, albeit by much narrower margins than in previous elections (except for the governorship, which they won easily), while the Democratic Party picked up three statewide offices.

U.S. Senate
Incumbent Republican Jeff Flake was eligible to run for re-election to a second term. As a strong critic of President Donald Trump and remaining unpopular in the state, Flake announced in October 2017 that he would not seek reelection.

President Trump and Republicans backed Martha McSally to succeed Flake. Kelli Ward, former state senator and candidate for the U.S. Senate in 2016 also ran for the Republican nomination for the open seat.

Results
On the evening of Monday, November 12, 2018, McSally posted on her Twitter that she had spoken with Sinema and conceded. Sinema celebrated with supporters later that evening.

U.S. House of Representatives
Seven of nine incumbents in the United States House of Representatives ran for re-election in 2018, and all won. The primary elections took place on August 28, 2018. The general elections took place on November 6, 2018, and the open 2nd district flipped from Republican to Democratic.

Winners are in Bold

Governor
Incumbent Republican Governor Doug Ducey won re-election to a second term.

Secretary of state
Incumbent Republican secretary of state Michele Reagan lost the nomination for a second term to Steve Gaynor, who lost the general election to Democratic state senator Katie Hobbs.

Attorney general
Incumbent Republican attorney general Mark Brnovich won re-election to a second term.

Declared

 * Mark Brnovich, incumbent attorney general, former director of the Arizona Department of Gaming, and former Assistant U.S. Attorney for the U.S. District Court of Arizona

Candidates

 * January Contreras, former director of Arizona Department of Health Services and senior advisor to former U.S. Homeland Security Secretary Janet Napolitano

Declared

 * Michael Kielsky (write-in candidate)

State treasurer
Incumbent Republican state treasurer Jeff DeWit announced on April 6, 2016, that he would not run for re-election to a second term as state treasurer. DeWit resigned in April 2018 to become CFO of NASA and his replacement, Eileen Klein, announced that she would not be running for re-election.

Declared

 * Jo Ann Sabbagh, accountant
 * Kimberly Yee, state senator

Withdrew

 * Thomas Forese, Corporation Commissioner

Declared

 * Mark Manoil, attorney and former chairman of the Maricopa County Democratic Party

Declined

 * Mark Cardenas, state representative
 * William Mundell, former Corporation Commissioner (ran for Arizona Corporation Commission)

Superintendent of Public Instruction
Incumbent Republican Superintendent of Public Instruction Diane Douglas ran for re-election to a second term and lost to Frank Riggs in a close five-way primary. Riggs lost to Democratic teacher Kathy Hoffman in the general election.

Candidates

 * Robert Branch, Grand Canyon University professor
 * Diane Douglas, incumbent superintendent of public instruction
 * Jonathan Gelbart, director of charter school development for Basis Schools
 * Tracy Livingston, Maricopa County Community College District board member
 * Frank Riggs, former U.S. Representative for California's 1st congressional district (1995–1999), candidate for U.S. Senate for California in 1998, candidate for Governor of Arizona in 2006 and 2014

Declared

 * Kathy Hoffman, Peoria Unified School District speech therapist
 * David Schapira, high school administrator for the East Valley Institute of Technology and former state senator (2011–2013)

Mine Inspector
Incumbent Republican Mine Inspector Joe Hart won re-election to a fourth term.

Declared

 * Joe Hart, incumbent Mine Inspector

Declared

 * William Pierce, engineer

Declared

 * Kim Ruff (write-in candidate)

Corporation Commission
"Corporation Commissioners must only satisfy the standard requirements for all Arizona state officers, who must be at least 18 years old, a citizen of the United States and able to speak English." Two of the seats on the Arizona Corporation Commission are up for election, elected by plurality block voting.

Declared

 * Tom Forese, incumbent Corporation Commissioner
 * Rodney Glassman, former Tucson city councilman and Democratic nominee for U.S. Senate in 2010
 * James "Jim" O'Connor, former investment law advisor for the California State Senate
 * Justin Olson, incumbent Corporation Commissioner
 * Eric Sloan, small business owner

Declined

 * Doug Little, former Corporation Commissioner (2015–2017)

Declared

 * Sandra Kennedy, former Corporation Commissioner (2009–2013), former state senator (1993–2000), and former state representative (1987–1992)
 * William Mundell, former Republican Corporation Commissioner (1999–2009) and former Republican state representative (1986–1992)
 * Kiana Sears, Mesa Public Schools governing board member

Arizona State Legislature
All 30 members of the Arizona State Senate and all 60 members of the Arizona House of Representatives were up for election.

State ballot measures

 * [[Image:Symbol confirmed.svg|25px|Yes]] Prop 125 (HCR2032): Related to Public Retirement Systems
 * [[Image:Symbol confirmed.svg|25px|Yes]] Prop 126 (C-05-2018): "The Protect Arizona Taxpayers Act"
 * [[Image:Symbol delete vote.svg|25px|No]] Prop 127 (C-04-2018): "Clean Energy for a Healthy Arizona Amendment"
 * [[Image:Symbol delete vote.svg|25px|No]] Prop 305 (R-02-2018): "Save Our Schools Arizona"
 * [[Image:Symbol confirmed.svg|25px|Yes]] Prop 306 (HCR2007): Related to the Citizens Clean Elections Act