U.S. House seat · former district
Montana's at-large District
16 elections since 1992: Democrats won 2, Republicans 14.
2020 election
Nov 3, 2020- Matthew M. Rosendale, Sr. (R) · won56.4%
- Kathleen Williams (D)43.6%
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
Every election for this seat
16 races since 1992; the seat changed party 1 time. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2012 | |||
| 2020 | Matthew M. Rosendale, Sr. (R) | Kathleen Williams (D) | 12.8 |
| 2018 | Greg Gianforte (R) | Kathleen Williams (D) | 4.6 |
| 2017 special election | Greg Gianforte (R) | Rob Quist (D) | 5.6 |
| 2016 | Ryan K. Zinke (R) | Denise Juneau (D) | 15.6 |
| 2014 | Ryan K. Zinke (R) | John Lewis (D) | 15.0 |
| 2012 | Steve Daines (R) | Kim Gillan (D) | 10.5 |
| Lines first used in 2002 | |||
| 2010 | Denny Rehberg (R) | Dennis McDonald (D) | 26.6 |
| 2008 | Dennis R. Rehberg (R) | John Driscoll (D) | 31.7 |
| 2006 | Dennis R. Rehberg (R) | Monica J. Lindeen (D) | 19.7 |
| 2004 | Dennis R. Rehberg (R) | Tracy Velazquez (D) | 31.6 |
| 2002 | Dennis R. Rehberg (R) | Steve Kelly (D) | 32.0 |
| Lines first used in 1992 | |||
| 2000 | Dennis R. Rehberg (R) | Nancy Keenan (D) | 5.2 |
| 1998 | Rick Hill (R) | Dusty Deschamps (D) | 8.6 |
| 1996 | Rick Hill (R)Flip | Bill Yellowtail (D) | 9.3 |
| 1994 | Pat Williams (D) | Cy Jamison (R) | 6.4 |
| 1992 | Pat Williams (D) | Ronald Marlenee (R) | 3.5 |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)