2018 Senate elections · Arizona history
Arizona U.S. Senate election 2018
Kyrsten Sinema DEM +2.3 gain · Class I seat · held 11/6/18
- Votes counted
- 2,384,308
- Margin
- 2.3 pts
- Seat held by
- Republicanchanged party
General election 11/6/18
| Candidate | Party | Votes | Share | Bar |
|---|---|---|---|---|
| Kyrsten Sinema Won | DEM | 1,191,100 | 49.96% | |
| Martha McSally | REP | 1,135,200 | 47.61% | |
| Angela Green | GRE | 57,442 | 2.41% | |
| Barry Hess | W | 365 | 0.02% | |
| Jonathan B. Ringham | W | 46 | 0.00% | |
| Michael DeCarlo | W | 45 | 0.00% | |
| Sheila Bilyeu | W | 42 | 0.00% | |
| Robert Kay | W | 37 | 0.00% | |
| Jeff Pearce | W | 29 | 0.00% | |
| Edward Davida | W | 2 | 0.00% | |
| Total | 2,384,308 | |||
Official source: Election-Statistics
Other Arizona Senate races
| Year | Seat | Winner | Margin |
|---|---|---|---|
| 2024 | Class I | Ruben Gallego | 2.4 |
| 2022 | Class III | Mark Kelly | 4.9 |
| 2020 special | Class III | Mark Kelly | 2.4 |
| 2018 | Class I | Kyrsten Sinema | 2.3 |
| 2016 | Class III | John McCain | 13.0 |
| 2012 | Class I | Jeff Flake | 3.0 |
| 2010 | Class III | John McCain | 24.2 |
| 2006 | Class I | Jon Kyl | 9.8 |
| 2004 | Class III | John McCain | 56.1 |
| 2000 | Class I | Jon Kyl | 71.5 |
| 1998 | Class III | John McCain | 41.6 |
| 1994 | Class I | Jon Kyl | 14.2 |
Questions and answers
Who won the 2018 Arizona Senate race?
Kyrsten Sinema (DEM) won with 50.0% of the vote, ahead of Martha McSally (47.6%), a margin of 2.3 points.
Did the Arizona Senate seat change party in 2018?
Yes. It moved from the Republican Party to the Democratic Party.
How many votes were cast in the 2018 Arizona Senate race?
2,384,308 votes were counted for the candidates in the general election.
Compiled by FiveThirtyEight from the official source linked above.