DemocratNot in office · last served 2024Last on a ballot: Nov 2024
Jon Tester
Jon Tester ran in 6 elections between 1998 and 2024, winning 5. Served in the Montana State Senate (District 45) and the U.S. Senate (Montana).
- Elections
- 6
- 1998–2024
- Won
- 5
- generals, primaries and specials
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Career
Offices held, and every time Tester was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
1998200020022004200620082010201220142016201820202022202420262028Montana State Senate, District 45U.S. Senate, Montana
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Every race Tester has run
Margin: how far Tester finished ahead of (+) or behind (−) the runner-up.
| Year | Office | Stage | Result | Opponents | Share | Margin | Raised |
|---|---|---|---|---|---|---|---|
| 2024 | U.S. Senate, Montana | General | Lost | Tim Sheehy (R), Sid Daoud (L), Robert Barb (G) | 45.5% | R+7.1 | $93.6M |
| 2018 | U.S. Senate, Montana | General | Won | Matthew M. Rosendale, Sr. (R), Rick Breckenridge (L) | 50.3% | D+3.6 | $18.7M |
| 2012 | U.S. Senate, Montana | General | Won | Denny Rehberg (R), Dan Cox (L) | 48.6% | D+3.7 | $11.9M |
| 2006 | U.S. Senate, Montana | General | Won | Conrad Burns (R), Stan Jones (L) | 49.2% | D+0.9 | $5.6M |
| 2002 | Montana State Senate, District 45 | General | Won | Roy Hollandsworth (R) | 71.2% | D+42.4 | — |
| 1998 | Montana State Senate, District 45 | General | Won | Roger Debruycker (R) | 55.6% | D+11.1 | — |
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Seats Tester has held
- U.S. Senate, Montana · 2007–2024
- Montana State Senate, District 45 · 1999–2006
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Who Tester has run against
- Tim Sheehy (R) · 2024 election, lost
- Matthew M. Rosendale, Sr. (R) · 2018 election, won
- Denny Rehberg (R) · 2012 election, won
- Conrad Burns (R) · 2006 election, won
- Roy Hollandsworth (R) · 2002 election, won
- Roger Debruycker (R) · 1998 election, won
Source: 99chambers results archive (MEDSL, Klarner, state election offices)