U.S. Senate elections in Idaho
● In officeMike CrapoRepublicanJames E. RischRepublican
Elections won
R 30 · D 838 Senate elections since 1914
Last decided by
31.9 pts2022, Mike Crapo over David Roth
Closest ever
0.96 pts1980, Steve Symms over Frank Church
Longest streak
16 in a rowRepublican, 1978–2022
Next election
2026Tuesday, November 3, 2026
Idaho's U.S. Senate seats are held by Republican Mike Crapo and Republican James E. Risch; Crapo won the most recent race by 31.9 points in 2022. Crapo has held one seat since 1998 and Risch the other since 2008. The 2022 race put Crapo ahead of David Roth, 31.9 points clear. Across 38 elections since 1914, Republicans have won 30 and Democrats 8. Of those, the closest was 1980, decided by 0.96 points; the widest 1924, by 59.4 points.
Mike Crapo R 358,539 · David Roth D 169,808 · Scott Oh Cleveland I 49,917 · Ray J. Writz C 8,500 · +1 more
James E. Risch R 538,446 · Paulette Jordan D 285,864 · Natalie M Fleming I 25,329 · Ray J. Writz C 10,188
James E. Risch R 285,596 · Nels Mitchell D 151,574
James E. Risch R 371,744 · Larry Larocco D 219,903 · Rex Rammell I 34,510 · Kent A. Marmon L 9,958 · +1 more
Mike Crapo R 499,796
Larry E. Craig R 283,532 · Walt Minnick D 198,422 · Mary J. Charbonneau I 10,137 · Susan Vegors N 5,142
Dirk Kempthorne R 270,468 · Richard H. Stallings D 208,036
Larry E. Craig R 193,641 · Ron J. Twilegar D 122,295
Steve Symms R 196,958 · John V Evans D 185,066
James A. McClure R 194,412 · Dwight Jensen D 89,635
Frank Church D 173,482 · George Hansen V R 114,394
Leonard B. Jordan R 139,819 · Ralph R. Harding D 112,637
Leonard B. Jordan R 131,279 · Gracie Pfost D 126,398
Frank Church D 141,657 · Jack Hawley R 117,129
Henry C. Dworshak R 152,648 · R. F. McLaughlin D 139,448
Henry C. Dworshak R 142,269 · Glen H. Taylor D 84,139
Herman Welker R 124,237 · D. Worth Clark D 77,180
Glen H. Taylor D 107,096 · C. A. Bottolfsen R 102,373
John Thomas R 73,353 · Glen H. Taylor D 68,989
William E. Borah R 128,723 · C. Ben Ross D 74,444
William E. Borah R 94,938 · Joseph M. Tyler D 36,162
Frank R. Gooding R 75,985 · John F. Nugent D 64,513
William E. Borah R 63,587 · Frank L. Moore D 31,018
James H. Brady R 47,486 · James H. Brawley D 41,266 · Paul Clagstone E 10,321 · C. W. Cooper S 7,888 · +1 more