List of United States senators from New Mexico

New Mexico was admitted to the Union on January 6, 1912 and elects members of the United States Senate who belong to class 1 and class 2. The state's current U.S. senators are Democrats Martin Heinrich (since 2013) and Ben Ray Luján (since 2021). Pete Domenici was New Mexico's longest-serving senator (1973–2009).^[1]

Current delegation

Martin Heinrich (D)

Ben Ray Luján (D)

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			Jan 6, 1912 – Mar 27, 1912	New Mexico became a state January 6, 1912, but didn't elect its U.S. senators until March 27.	1	62nd	1	New Mexico became a state January 6, 1912, but didn't elect its U.S. senators until March 27.	Jan 6, 1912 – Mar 27, 1912	Vacant
1	Thomas B. Catron	Republican	Mar 27, 1912 – Mar 3, 1917	Elected in 1912. Retired.		62nd	1	Elected in 1912.	Mar 27, 1912 – Mar 3, 1921	Republican	Albert B. Fall	1
						63rd	2	Elected in 1912 to next term, but Legislature invalided that election. Re-elected in 1913 to next term.
						64th
2	Andrieus A. Jones	Democratic	Mar 4, 1917 – Dec 20, 1927	Elected in 1916.	2	65th
						66th	3	Re-elected in 1918. Resigned to become U.S. Secretary of the Interior.
						67th			Mar 4, 1921 – Mar 11, 1921	Vacant
						67th		Appointed to continue Fall's term. Elected in 1921 to finish Fall's term.^[2] Lost re-election.	Mar 11, 1921 – Mar 3, 1925	Republican	Holm O. Bursum	2
				Re-elected in 1922. Died.	3	68th			Mar 11, 1921 – Mar 3, 1925	Republican	Holm O. Bursum	2
						69th	4	Elected in 1924.	Mar 4, 1925 – Jun 24, 1933	Democratic	Sam G. Bratton	3
						70th
Vacant			Dec 20, 1927 – Dec 29, 1927
3	Bronson M. Cutting	Republican	Dec 29, 1927 – Dec 6, 1928	Appointed to continue Jones's term. Retired when elected successor qualified.
4	Octaviano Larrazolo	Republican	Dec 7, 1928 – Mar 3, 1929	Elected in 1928 to finish Jones's term. Retired due to illness.
5	Bronson M. Cutting	Republican	Mar 4, 1929 – May 6, 1935	Elected in 1928.	4	71st
						72nd	5	Re-elected in 1930. Resigned to become a judge of the U.S. Court of Appeals.
						73rd
									Jun 24, 1933 – Oct 10, 1933	Vacant
								Appointed to continue Bratton's term Elected in 1934 to finish Bratton's term.	Oct 10, 1933 – Jan 3, 1949	Democratic	Carl Hatch	4
				Re-elected in 1934. Died.	5	74th
Vacant			May 6, 1935 – May 11, 1935
6	Dennis Chávez	Democratic	May 11, 1935 – Nov 18, 1962	Appointed to continue Cutting's term. Elected in 1936 to finish Cutting's term.
						75th	6	Re-elected in 1936.
						76th
				Re-elected in 1940.	6	77th
						78th	7	Re-elected in 1942. Retired.
						79th
				Re-elected in 1946.	7	80th
						81st	8	Elected in 1948.	Jan 3, 1949 – Jan 3, 1973	Democratic	Clinton Anderson	5
						82nd
				Re-elected in 1952.	8	83rd
						84th	9	Re-elected in 1954.
						85th
				Re-elected in 1958. Died.	9	86th
				Re-elected in 1958. Died.		87th	10	Re-elected in 1960.
Vacant			Nov 18, 1962 – Nov 30, 1962
7	Edwin L. Mechem	Republican	Nov 30, 1962 – Nov 3, 1964	Self-appointed to continue Chávez's term. Lost election to finish Chávez's term.
7	Edwin L. Mechem	Republican	Nov 30, 1962 – Nov 3, 1964			88th
8	Joseph Montoya	Democratic	Nov 4, 1964 – Jan 3, 1977	Elected in 1964 to finish Chávez's term.		88th
				Re-elected in 1964.	10	89th
						90th	11	Re-elected in 1966. Retired.
						91st
				Re-elected in 1970. Lost re-election.	11	92nd
						93rd	12	Elected in 1972.	Jan 3, 1973 – Jan 3, 2009	Republican	Pete Domenici	6
						94th
9	Harrison Schmitt	Republican	Jan 3, 1977 – Jan 3, 1983	Elected in 1976. Lost re-election.	12	95th
						96th	13	Re-elected in 1978.
						97th
10	Jeff Bingaman	Democratic	Jan 3, 1983 – Jan 3, 2013	Elected in 1982.	13	98th
						99th	14	Re-elected in 1984.
						100th
				Re-elected in 1988.	14	101st
						102nd	15	Re-elected in 1990.
						103rd
				Re-elected in 1994.	15	104th
						105th	16	Re-elected in 1996.
						106th
				Re-elected in 2000.	16	107th
						108th	17	Re-elected in 2002. Retired.
						109th
				Re-elected in 2006. Retired.	17	110th
						111th	18	Elected in 2008.	Jan 3, 2009 – Jan 3, 2021	Democratic	Tom Udall	7
						112th
11	Martin Heinrich	Democratic	Jan 3, 2013 – present	Elected in 2012.	18	113th
						114th	19	Re-elected in 2014. Retired.
						115th
				Re-elected in 2018.	19	116th
						117th	20	Elected in 2020.	Jan 3, 2021 – present	Democratic	Ben Ray Luján	8
						118th
				Re-elected in 2024.	20	119th
				Re-elected in 2024.	20	120th	21	To be determined in the 2026 election.
#	Senator	Party	Years in office	Electoral history	T	C	T	Electoral history	Years in office	Party	Senator	#
Class 1						C	Class 2