U.S. Senate seat · statewide
U.S. Senate in Arizona
18 elections since 1976: Democrats won 7, Republicans 11.
2024 election
Nov 5, 2024- Ruben Gallego (D) · won50.0%
- Kari Lake (R)47.6%
- Eduardo Quintana (GRN)2.3%
- Sarah Williams (OTH)0.0%
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 3:26 AM ET
Every election for this seat
18 races since 1976; the seat changed party 3 times.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| 2024 · Class 1 seat | Ruben Gallego (D) | Kari Lake (R) | 2.4 |
| 2022 · Class 3 seat | Mark Kelly (D)Flip | Blake Masters (R) | 4.9 |
| 2020 special · Special election | Mark Kelly (D) | Martha McSally (R) | 2.3 |
| 2018 · Class 1 seat | Kyrsten Sinema (D)Flip | Martha McSally (R) | 2.3 |
| 2016 · Class 3 seat | John McCain (R) | Ann Kirkpatrick (D) | 12.9 |
| 2012 · Class 1 seat | Jeff Flake (R) | Richard Carmona (D) | 3.0 |
| 2010 · Class 3 seat | John McCain (R) | Rodney Glassman (D) | 24.2 |
| 2006 · Class 1 seat | Jon Kyl (R) | Jim Pederson (D) | 9.8 |
| 2004 · Class 3 seat | John McCain (R) | Stuart Starky (D) | 56.1 |
| 2000 · Class 1 seat | Jon Kyl (R) | William Toel (I) | 71.5 |
| 1998 · Class 3 seat | John McCain (R) | Ed Ranger (D) | 41.6 |
| 1994 · Class 1 seat | Jon Kyl (R)Flip | Samuel Coppersmith (D) | 14.2 |
| 1992 · Class 3 seat | John McCain (R) | Claire Sargent (D) | 24.2 |
| 1988 · Class 1 seat | Dennis DeConcini (D) | Keith Degreen (R) | 15.7 |
| 1986 · Class 3 seat | John McCain (R) | Richard Kimball (D) | 21.0 |
| 1982 · Class 1 seat | Dennis DeConcini (D) | Pete Dunn (R) | 16.6 |
| 1980 · Class 3 seat | Barry Goldwater (R) | Bill Schulz (D) | 1.1 |
| 1976 · Class 1 seat | Dennis DeConcini (D) | Sam Steiger (R) | 10.7 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)