U.S. Senate elections in Montana
● In officeSteve DainesRepublicanTim SheehyRepublican
Elections won
R 7 · D 3138 Senate elections since 1916
Last decided by
7.1 pts2024, Tim Sheehy over Jon Tester
Closest ever
0.71 pts1942, James E. Murray over Wellington D. Rankin
Longest streak
13 in a rowDemocratic, 1948–1984
Next election
2026Tuesday, November 3, 2026
Montana's U.S. Senate seats are held by Republican Steve Daines and Republican Tim Sheehy; Sheehy won the most recent race by 7.1 points in 2024. Daines has held one seat since 2014 and Sheehy the other since 2024. The 2024 race put Sheehy ahead of Jon Tester, 7.1 points clear. Across 38 elections since 1916, Republicans have won 7 and Democrats 31. Of those, the closest was 1942, decided by 0.71 points; the widest 1958, by 52.4 points.
Steve Daines R 333,174 · Steve Bullock D 272,463
Max Baucus D 348,289 · Bob Kelleher R 129,369
Conrad R. Burns R 218,542 · Jack Mudd D 131,845
Conrad R. Burns R 189,445 · John Melcher D 175,809
Max Baucus D 160,353 · Larry Williams R 127,589
John Melcher D 206,232 · Stanley C. Burger R 115,213
Lee Metcalf D 163,609 · Henry S. Hibbard R 151,316
Mike Mansfield D 150,060 · Harold E. Wallace R 97,809
Lee Metcalf D 138,166 · Tim Babcock R 121,697
Mike Mansfield D 180,643 · Alex Blewett R 99,367
Lee Metcalf D 140,331 · Orvin B. Fjare R 136,281
Mike Mansfield D 174,910 · Lou W. Welch R 54,573
James E. Murray D 114,591 · Wesley A. D'Ewart R 112,863
James E. Murray D 83,673 · Wellington D. Rankin R 82,461 · Charles R. Miller P 2,711 · E. H. Helterbran S 1,669
Burton K. Wheeler D 176,753 · E. K. Cheadle R 63,941
Burton K. Wheeler D 142,823 · George M. Bourquin R 58,519 · William F. Held S 1,381 · Ramond F. Gray C 903
James E. Murray D 116,965 · Scott Leavitt R 77,307
Thomas J. Walsh D 106,274 · Albert J. Galen R 66,724 · Charles E. Taylor F 1,789 · John F. McKay S 1,006 · +1 more
Burton K. Wheeler D 103,655 · Joseph M. Dixon R 91,185
Thomas J. Walsh D 89,681 · Frank B. Linderman R 72,000 · J. W. Anderson F 7,370 · Charles F. Juttner S 522 · +1 more