Democrat Republican
1889 Joseph Toole Thomas Power
1892 Timothy Collins John Rickards
1896 Robert Smith Alexander Botkin
1900 Joseph Toole David Folsom
1904 Joseph Toole William Lindsay
1908 Edwin Norris Edward Donlan
1912 Sam Stewart Harry Wilson
1916 Sam Stewart Frank Edwards
1920 Burton Wheeler Joseph Dixon
1924 John Erickson Joseph Dixon
1928 John Erickson Wellington Rankin
1932 John Erickson Frank Hazelbaker
1936 Roy Ayers Frank Hazelbaker
1940 Roy Ayers Sam Ford
1944 Leif Erickson Sam Ford
1948 John Bonner Sam Ford
1952 John Bonner Hugo Aronson
1956 Arnold Olsen Hugo Aronson
1960 Cannon Nutter
1964 Renne Babcock
1968 Anderson Babcock
1972 Judge Smith
1976 Judge Woodahl
1980 Schwinden Ramirez
1984 Schwinden Goodover
1988 Judge Stephens
1992 Bradley Racicot
1996 Blaylock Racicot
2000 O’Keefe Martz
2004 Schweitzer Brown
2008 Schweitzer Brown
2012 Bullock Hill
2016 Bullock Gianforte
2020 Cooney Gianforte