List of United States Senators from Montana

Montana was admitted to the Union on November 8, 1889, and elects senators to Classes 1 and 2. Its current senators are Democrats Max Baucus and Jon Tester.

Class 1

#	Senator	Party	Years	Congress	Term	Electoral history
1	Wilbur F. Sanders	Republican	January 1, 1890 – March 3, 1893	51	1	Elected in 1889 Lost re-election
				52
Vacant			March 3, 1893 – January 16, 1895	53	2	Legislature failed to elect
2	Lee Mantle	Republican	January 16, 1895 – March 4, 1899			Appointed to fill vacant term Elected to finish vacant term Lost renomination
				54
				55
3	William A. Clark	Democratic	March 4, 1899 – May 15, 1900	56	3	Elected in 1899 Resigned to avoid claim of election fraud
Vacant			May 15, 1900 – March 7, 1901	56		Clark was appointed to continue his vacant term, but did not qualify
				57
4	Paris Gibson	Democratic	March 7, 1901 – March 4, 1905			Elected to finish Clark's term Retired
				58
5	Thomas H. Carter	Republican	March 4, 1905 – March 4, 1911	59	4	Elected in 1904 Retired
				60
				61
6	Henry L. Myers	Democratic	March 4, 1911 – March 4, 1923	62	5	Elected in 1910
				63
				64
				65	6	Re-elected in 1916 Retired
				66
				67
7	Burton K. Wheeler	Democratic	March 4, 1923 – January 3, 1947	68	7	Elected in 1922
				69
				70
				71	8	Re-elected in 1928
				72
				73
				74	9	Re-elected in 1934
				75
				76
				77	10	Re-elected in 1940 Lost renomination
				78
				79
8	Zales Ecton	Republican	January 3, 1947 – January 3, 1953	80	11	Elected in 1946 Lost re-election
				81
				82
9	Mike Mansfield	Democratic	January 3, 1953 – January 3, 1977	83	12	Elected in 1952
				84
				85
				86	13	Re-elected in 1958
				87
				88
				89	14	Re-elected in 1964
				90
				91
				92	15	Re-elected in 1970 Retired
				93
				94
10	John Melcher	Democratic	January 3, 1977 – January 3, 1989	95	16	Elected in 1976
				96
				97
				98	17	Re-elected in 1982 Lost re-election
				99
				100
11	Conrad Burns	Republican	January 3, 1989 – January 3, 2007	101	18	Elected in 1988
				102
				103
				104	19	Re-elected in 1994
				105
				106
				107	20	Re-elected in 2000 Lost re-election
				108
				109
12	Jon Tester	Democratic	January 3, 2007 – Present	110	21	Elected in 2006
				111
				112
				113	22	Re-elected in 2012
				114
				115
#	Senator	Party	Years	Congress	Term	Electoral history

Class 2

#	Senator	Party	Years	Congress	Term	Electoral history
1	Thomas C. Power	Republican	January 2, 1890 – March 4, 1895	51	1	Elected in 1889 Retired
				52
				53
2	Thomas H. Carter	Republican	March 4, 1895 – March 4, 1901	54	2	Elected in 1895 Retired
				55
				56
3	William A. Clark	Democratic	March 4, 1901 – March 3, 1907	57	3	Elected in 1901 Retired
				58
				59
4	Joseph M. Dixon	Republican	March 4, 1907 – March 4, 1913	60	4	Elected in 1907 Lost re-election
				61
				62
5	Thomas J. Walsh	Democratic	March 4, 1913 – March 2, 1933	63	5	Elected in 1913
				64
				65
				66	6	Re-elected in 1918
				67
				68
				69	7	Re-elected in 1924
				70
				71
				72	8	Re-elected in 1930 Died
Vacant			March 2, 1933 – March 13, 1933
				73
6	John E. Erickson	Democratic	March 13, 1933 – November 6, 1934			Self-appointed to continue Walsh's term Lost nomination to finish Walsh's term
7	James E. Murray	Democratic	November 7, 1934 – January 3, 1961			Elected to finish Walsh's term
				74
				75	9	Elected to full term in 1936
				76
				77
				78	10	Re-elected in 1942
				79
				80
				81	11	Re-elected in 1948
				82
				83
				84	12	Re-elected in 1954 Retired
				85
				86
8	Lee Metcalf	Democratic	January 3, 1961 – January 12, 1978	87	13	Elected in 1960
				88
				89
				90	14	Re-elected in 1966
				91
				92
				93	15	Re-elected in 1972 Died
				94
				95
Vacant			January 12, 1978 – January 22, 1978
9	Paul G. Hatfield	Democratic	January 22, 1978 – December 12, 1978			Appointed to fill Metcalf's term Lost nomination to full term, then resigned early to give successor preferential seniority
Vacant			December 12, 1978 – December 15, 1978
10	Max Baucus	Democratic	December 15, 1978 – Present			Appointed early to finish Hatfield's term, having already been elected to the next term
				96	16	Elected in 1978
				97
				98
				99	17	Re-elected in 1984
				100
				101
				102	18	Re-elected in 1990
				103
				104
				105	19	Re-elected in 1996
				106
				107
				108	20	Re-elected in 2002
				109
				110
				111	21	Re-elected in 2008
				112
				113
#	Senator	Party	Years	Congress	Term	Electoral history

See also

• List of United States Representatives from Montana
• United States congressional delegations from Montana