2022 United States Senate election in Illinois

The 2022 United States Senate election in Illinois was held on November 8, 2022, to elect a member of the United States Senate to represent the state of Illinois.

Incumbent Democratic senator Tammy Duckworth was re-elected for a second term against former U.S. House of Representatives candidate Kathy Salvi, the Republican nominee, winning by a margin of 15.3%, 0.2% more than her 2016 margin. Duckworth became the first woman ever to be re-elected for a second term in the state's history. This was the first Illinois U.S. Senate election where both major party candidates were female.

Salvi flipped seven counties—Calhoun, McDonough, Knox, Gallatin, Pulaski, Alexander, and Madison—that had voted for Duckworth in 2016. On the other hand, Duckworth won Kendall, McLean, Peoria, and Winnebago, which had all voted against her in 2016. With Duckworth's victory, this was the first time since 1986 that a Class 3 Illinois senator was re-elected to a successive six-year term, and the first time since 1992 that any party won the seat consecutively.

Nominee

 * Tammy Duckworth, incumbent U.S. Senator

Nominee

 * Kathy Salvi, attorney, former assistant public defender in Lake County, and candidate for IL's 8th congressional district in 2006

Eliminated in primary

 * Casey Chlebek, real estate agent
 * Matthew Dubiel, owner of WCKG
 * Peggy Hubbard, former police officer, U.S. Navy veteran, and candidate for U.S. Senate in 2020
 * Bobby Piton, investor and activist
 * Jimmy Lee Tillman, founder of New Martin Luther King Republicans, son of former Chicago alderman Dorothy Tillman, and nominee for IL's 1st congressional district in 2014 and 2018
 * Anthony Williams

Disqualified

 * Tim Arview, insurance agent
 * Maryann Mahlen
 * Allison Salinas, activist

Declined

 * Tom Demmer, state representative (ran for Illinois Treasurer)
 * Adam Kinzinger, U.S. Representative for IL's 16th congressional district

Polling

 * Graphical summary

Results
[[File:2022 Illinois U.S. Senate Republican primary.svg|thumb|250px|upright|Results by county {{legend|#e27f7f|Salvi}}

{{legend|#FFE0EA|20–30%}}

{{legend|#FFC8CD|30–40%}}

{{legend|#FFB2B2|40–50%}}

{{legend|#E27F7F|50–60%}} {{legend|#ff9955|Hubbard}}

{{legend|#ffdac1|20–30%}}

{{legend|#ffcca9|30–40%}}

{{legend|#ffb580|40–50%}}

{{legend|#FF9A50|50–60%}} {{legend|#FACA33|Dubiel}}

{{legend|#f8f8cc|20–30%}} ]]

Polling

 * Aggregate polls
 * Graphical summary


 * Tammy Duckworth vs. generic opponent

Counties that flipped from Democratic to Republican

 * Alexander (largest city: Cairo)
 * Calhoun (largest city: Hardin)
 * Gallatin (largest city: Shawneetown)
 * Knox (largest city: Galesburg)
 * Madison (largest city: Granite City)
 * McDonough (largest city: Macomb)
 * Pulaski (largest city: Mounds)

Counties that flipped from Republican to Democratic

 * Kendall (largest city: Oswego)
 * McLean (largest city: Bloomington)
 * Peoria (largest city: Peoria)
 * Winnebago (largest city: Rockford)

By congressional district
Duckworth won 14 of 17 congressional districts.