List of United States senators from Montana

Current delegation

Jon Tester (D)

Steve Daines (R)

Montana was admitted to the Union on November 8, 1889 and elects U.S. senators to Classes 1 and 2. Its current U.S. senators are Democrat Jon Tester (serving since 2007) and Republican Steve Daines (serving since 2015), making it one of seven states to have a split United States Senate delegation.

List of senators[]

#	Senator	Party	Dates in office	Electoral history	T	C	T	Electoral history	Dates in office	Party	Senator	#
Class 1 Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2000, 2006, 2012, and 2018. The next election will be in 2024.						C	Class 2 Class 2 U.S. senators belong to the electoral cycle that has recently been contested in 2002, 2008, 2014, and 2020. The next election will be in 2026.
Vacant			November 8, 1889 – January 1, 1890	Montana elected its first Senators two months after admission to the Union.	1	51st	1	Montana elected its first Senators two months after admission to the Union.	November 8, 1889 – January 2, 1890	Vacant
1	Wilbur F. Sanders	Republican	January 1, 1890 – March 3, 1893	Elected in 1890. Lost re-election.		51st		Elected in 1890. Retired.	January 2, 1890 – March 3, 1895	Republican	Thomas C. Power	1
1	Wilbur F. Sanders	Republican	January 1, 1890 – March 3, 1893	Elected in 1890. Lost re-election.		52nd
Vacant			March 3, 1893 – January 16, 1895	Legislature failed to elect.	2	53rd
2	Lee Mantle	Republican	January 16, 1895 – March 3, 1899	Elected to finish vacant term. Lost renomination.		53rd
		Republican				54th	2	Elected in January 1895.^[1] Lost re-election.	March 4, 1895 – March 3, 1901	Republican	Thomas H. Carter	2
		Silver Republican				55th
3	William A. Clark	Democratic	March 4, 1899 – May 15, 1900	Elected in 1899. Resigned to avoid claim of election fraud.	3	56th
Vacant			May 15, 1900 – March 7, 1901	Clark was appointed to continue his vacant term, but did not qualify.		56th
Vacant			May 15, 1900 – March 7, 1901			57th	3	Elected in 1901. Retired.	March 4, 1901 – March 3, 1907	Democratic	William A. Clark	3
4	Paris Gibson	Democratic	March 7, 1901 – March 3, 1905	Elected to finish Clark's term.^[2]^[3] Retired.		57th
4	Paris Gibson	Democratic	March 7, 1901 – March 3, 1905	Elected to finish Clark's term.^[2]^[3] Retired.		58th
5	Thomas H. Carter	Republican	March 4, 1905 – March 3, 1911	Elected January 16, 1905.^[4] Lost re-election.	4	59th
						60th	4	Elected January 16, 1907.^[5] Lost re-election as a Progressive.	March 4, 1907 – March 3, 1913	Republican	Joseph M. Dixon	4
						61st
6	Henry L. Myers	Democratic	March 4, 1911 – March 3, 1923	Elected March 2, 1911.	5	62nd
						63rd	5	Elected January 14, 1913.	March 4, 1913 – March 2, 1933	Democratic	Thomas J. Walsh	5
						64th
				Re-elected in 1916. Retired.	6	65th
						66th	6	Re-elected in 1918.
						67th
7	Burton K. Wheeler	Democratic	March 4, 1923 – January 3, 1947	Elected in 1922.	7	68th
						69th	7	Re-elected in 1924.
						70th
				Re-elected in 1928.	8	71st
						72nd	8	Re-elected in 1930. Died.^[6]
						72nd			March 2, 1933 – March 13, 1933	Vacant
						73rd			March 2, 1933 – March 13, 1933	Vacant
								Appointed to continue Walsh's term. Lost nomination to finish Walsh's term.	March 13, 1933 – November 6, 1934	Democratic	John E. Erickson	6
								Elected to finish Walsh's term.^[7]	November 7, 1934 – January 3, 1961	Democratic	James E. Murray	7
				Re-elected in 1934.	9	74th		Elected to finish Walsh's term.^[7]
						75th	9	Elected to full term in 1936.
						76th
				Re-elected in 1940. Lost renomination.	10	77th
						78th	10	Re-elected in 1942.
						79th
8	Zales Ecton	Republican	January 3, 1947 – January 3, 1953	Elected in 1946. Lost re-election.	11	80th
						81st	11	Re-elected in 1948.
						82nd
9	Mike Mansfield	Democratic	January 3, 1953 – January 3, 1977	Elected in 1952.^[8]	12	83rd
						84th	12	Re-elected in 1954. Retired.
						85th
				Re-elected in 1958.	13	86th
						87th	13	Elected in 1960.^[9]	January 3, 1961 – January 12, 1978	Democratic	Lee Metcalf	8
						88th
				Re-elected in 1964.	14	89th
						90th	14	Re-elected in 1966.
						91st
				Re-elected in 1970. Retired.	15	92nd
						93rd	15	Re-elected in 1972. Died.
						94th
10	John Melcher	Democratic	January 3, 1977 – January 3, 1989	Elected in 1976.	16	95th
									January 12, 1978 – January 22, 1978	Vacant
								Appointed to finish Metcalf's term. Lost nomination to full term. Resigned early to give successor preferential seniority.	January 22, 1978 – December 14, 1978	Democratic	Paul G. Hatfield	9
									December 14, 1978 – December 15, 1978	Vacant
								Appointed early to finish Hatfield's term, having already been elected to the next term.^[10]	December 15, 1978 – February 6, 2014	Democratic	Max Baucus	10
						96th	16	Elected in 1978.
						97th
				Re-elected in 1982. Lost re-election.	17	98th
						99th	17	Re-elected in 1984.
						100th
11	Conrad Burns	Republican	January 3, 1989 – January 3, 2007	Elected in 1988.	18	101st
						102nd	18	Re-elected in 1990.
						103rd
				Re-elected in 1994.	19	104th
						105th	19	Re-elected in 1996.
						106th
				Re-elected in 2000. Lost re-election.	20	107th
						108th	20	Re-elected in 2002.
						109th
12	Jon Tester	Democratic	January 3, 2007 – Present	Elected in 2006.	21	110th
						111th	21	Re-elected in 2008. Resigned to become U.S. Ambassador to China.
						112th
				Re-elected in 2012.	22	113th
									February 6, 2014 – February 9, 2014	Vacant
								Appointed to finish Baucus's term. Retired.	February 9, 2014 – January 3, 2015	Democratic	John Walsh	11
						114th	22	Elected in 2014.	January 3, 2015 – Present	Republican	Steve Daines	12
						115th
				Re-elected in 2018.	23	116th
						117th	23	Re-elected in 2020.
						118th
To be determined in the 2024 election.					23	119th
To be determined in the 2024 election.					23	120th	24	To be determined in the 2026 election.
#	Senator	Party	Years in office	Electoral history	T		T	Electoral history	Years in office	Party	Senator	#
Class 1							Class 2

Living former senators[]

As of August 2021, there are two living former U.S. senators from Montana. The most recent senator to die was John Melcher (served 1977–1989) on April 12, 2018. The most recently serving senator to die was Conrad Burns (served 1989–2007) on April 28, 2016.

Senator	Term of office	Date of birth (and age)
Max Baucus	1978–2014	(1941-12-11) December 11, 1941 (age 79)
John Walsh	2014–2015	(1960-11-03) November 3, 1960 (age 60)

Superlatives[]

Longest service[]

Senator	First served	Last served	Length of service
Max Baucus	December 15, 1978	February 6, 2014	35 years, 53 days (12,837 days)
James E. Murray	November 7, 1934	January 3, 1961	26 years, 57 days (9,554 days)
Mike Mansfield	January 3, 1953	January 3, 1977	24 years, 0 days (8,766 days)
Burton K. Wheeler	March 4, 1923	January 3, 1947	23 years, 305 days (8,706 days)
Thomas J. Walsh	March 4, 1913	March 2, 1933	19 years, 363 days (7,303 days)

Shortest service[]

Senator	First served	Last served	Length of service
Paul G. Hatfield	January 22, 1978	December 14, 1978	10 months, 3 weeks and 1 day (326 days)
John Walsh	February 9, 2014	January 3, 2015	10 months, 3 weeks and 4 days (328 days)
John E. Erickson	March 13, 1933	November 6, 1934	1 year, 7 months, 3 weeks and 3 days (603 days)
Wilbur F. Sanders	January 1, 1890	March 3, 1893	3 years, 2 months and 2 days (1,157 days)
Paris Gibson	March 7, 1901	March 3, 1905	3 years, 11 months, 3 weeks and 3 days (1,457 days)

Youngest at beginning of service[]

Senator	Date of birth	First served	Age
Max Baucus	December 11, 1941	December 15, 1978	37 years and 4 days
Joseph M. Dixon	July 31, 1867	March 4, 1907	39 years, 7 months and 4 days
Thomas H. Carter	October 30, 1854	March 4, 1895	40 years, 4 months and 4 days
Burton K. Wheeler	February 27, 1882	March 4, 1923	41 years and 5 days
Lee Mantle	December 13, 1851	January 16, 1895	43 years, 1 month and 3 days

Oldest at end of service[]

Senator	Date of birth	Last served	Age
James E. Murray	May 3, 1876	January 3, 1961	84 years and 8 months
Paris Gibson	July 1, 1830	March 3, 1905	74 years, 8 months and 2 days
Mike Mansfield	March 16, 1903	January 3, 1977	73 years, 9 months and 18 days
Thomas J. Walsh	June 12, 1859	March 2, 1933	73 years, 8 months and 18 days
Max Baucus	December 11, 1941	February 6, 2014	72 years, 1 month and 26 days

References[]

^ Goodspeed, Weston Arthur, ed. (1904). "The Province and the States: A History of the Province of Louisiana Under France and Spain, And of the Territories and States of the United States Formed Therefrom" (Vol. VI ed.). Madison, Wisconsin: Western Historical Association. p. 457.
^ Tribune Staff. "125 Montana Newsmakers: Paris Gibson". Great Falls Tribune. Retrieved August 28, 2011.
^ "Gibson, Paris, (1830 - 1920)". Biographical Directory of the United States Congress. United States Congress. Retrieved August 28, 2011.
^ The World Almanac and Encyclopedia 1906. New York: The Press Publishing Co. New York World. 1905. p. 108.
^ The Tribune Almanac and Political Register 1908. New York: The Tribune Association. 1908. p. 259.
^ Tribune Staff. "125 Montana Newsmakers: Sen. Thomas J. Walsh". Great Falls Tribune. Retrieved August 26, 2011.
^ Tribune Staff. "125 Montana Newsmakers: Sen. James E. Murray". Great Falls Tribune. Retrieved August 29, 2011.
^ Tribune Staff. "125 Montana Newsmakers: Mike Mansfield". Great Falls Tribune. Retrieved August 28, 2011.
^ Tribune Staff. "125 Montana Newsmakers: Sen. Lee Metcalf". Great Falls Tribune. Retrieved August 28, 2011.
^ Tribune Staff. "125 Montana Newsmakers: Sen. Max Baucus". Great Falls Tribune. Retrieved August 29, 2011.

show v t United States senators from Montana
Class 1	Sanders Mantle Clark Gibson Carter Myers Wheeler Ecton Mansfield Melcher Burns Tester
Class 2	Power Carter Clark Dixon T. Walsh Erickson Murray Metcalf Hatfield Baucus J. Walsh Daines

show v t Montana's current delegation to the United States Congress
Senators	Jon Tester (D) Steve Daines (R)
Representative	Greg Gianforte (R)

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