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Current delegation

Michigan was admitted to the Union on January 26, 1837. Its current U.S. senators are Democrats Gary Peters and Elissa Slotkin. Carl Levin was Michigan's longest-serving senator (1979–2015). Four Michigan senators have risen to the position of President pro tempore, and one (Thomas W. Ferry) served as President of the Senate from November 22, 1875 to March 3, 1877 (as acting Vice President of the United States).^[1]

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 2006, 2012, 2018, and 2024. The next election will be in 2030.						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.
1	Lucius Lyon	Jacksonian	Jan 26, 1837 – Mar 3, 1839	Elected in 1835 but not seated until 1837 due to a territorial dispute with Ohio. Retired.	1	24th	1	Elected in 1835 but not seated until 1837 due to a territorial dispute with Ohio. Retired.	Jan 26, 1837 – Mar 3, 1841	Jacksonian	John Norvell	1
1	Lucius Lyon	Democratic	Jan 26, 1837 – Mar 3, 1839		1	25th				Democratic
Vacant			Mar 4, 1839 – Jan 20, 1840		2	26th
2	Augustus Porter	Whig	Jan 20, 1840 – Mar 3, 1845	Elected late in 1840. Retired.		26th
						27th	2	Elected in 1841. Retired.	Mar 4, 1841 – Mar 3, 1847	Whig	William Woodbridge	2
						28th
3	Lewis Cass	Democratic	Mar 4, 1845 – May 29, 1848	Elected in 1844 or 1845. Resigned to run for president.	3	29th
3	Lewis Cass	Democratic	Mar 4, 1845 – May 29, 1848	Elected in 1844 or 1845. Resigned to run for president.		30th	3	Elected in 1847. Retired.	Mar 4, 1847 – Mar 3, 1853	Democratic	Alpheus Felch	3
Vacant			May 29, 1848 – Jun 8, 1848
4	Thomas Fitzgerald	Democratic	Jun 8, 1848 – Mar 3, 1849	Appointed to continue Cass's term.
5	Lewis Cass	Democratic	Mar 4, 1849 – Mar 3, 1857	Elected in 1849 to finish his own term.		31st
				Re-elected in 1850 or 1851. Retired or lost re-election.	4	32nd
						33rd	4	Elected in 1853. Retired.	Mar 4, 1853 – Mar 3, 1859	Democratic	Charles E. Stuart	4
						34th
6	Zachariah Chandler	Republican	Mar 4, 1857 – Mar 3, 1875	Elected in 1857.	5	35th
						36th	5	Elected in 1858. Died.	Mar 4, 1859 – Oct 5, 1861	Republican	Kinsley S. Bingham	5
						37th		Elected in 1858. Died.	Mar 4, 1859 – Oct 5, 1861	Republican	Kinsley S. Bingham	5
									Oct 5, 1861 – Jan 17, 1862	Vacant
								Elected in 1862 to finish Bingham's term.	Jan 17, 1862 – Mar 3, 1871	Republican	Jacob M. Howard	6
				Re-elected in 1863.	6	38th		Elected in 1862 to finish Bingham's term.
						39th	6	Re-elected in 1865. Retired or lost re-election.
						40th
				Re-elected in 1869. Lost re-election.	7	41st
						42nd	7	Elected in 1871.	Mar 4, 1871 – Mar 3, 1883	Republican	Thomas W. Ferry	7
						43rd
7	Isaac P. Christiancy	Republican	Mar 4, 1875 – Feb 10, 1879	Elected in 1874. Resigned due to ill health.	8	44th
7	Isaac P. Christiancy	Republican	Mar 4, 1875 – Feb 10, 1879	Elected in 1874. Resigned due to ill health.		45th	8	Re-elected in 1877. Lost re-election.
Vacant			Feb 10, 1879 – Feb 22, 1879
8	Zachariah Chandler	Republican	Feb 22, 1879 – Nov 1, 1879	Elected in 1879 to finish Christiancy's term. Died.
8	Zachariah Chandler	Republican	Feb 22, 1879 – Nov 1, 1879	Elected in 1879 to finish Christiancy's term. Died.		46th
Vacant			Nov 1, 1879 – Nov 17, 1879
9	Henry P. Baldwin	Republican	Nov 17, 1879 – Mar 3, 1881	Appointed to continue Christiancy's term. Elected in 1881 to finish Christiancy's term. Retired.
10	Omar D. Conger	Republican	Mar 4, 1881 – Mar 3, 1887	Elected in 1881. Lost renomination.	9	47th
						48th	9	Election year unknown. Retired.	Mar 4, 1883 – Mar 3, 1889	Republican	Thomas W. Palmer	8
						49th
11	Francis B. Stockbridge	Republican	Mar 4, 1887 – Apr 30, 1894	Elected in 1887.	10	50th
						51st	10	Elected in 1889.	Mar 4, 1889 – Aug 10, 1902	Republican	James McMillan	9
						52nd
				Re-elected in 1893. Died.	11	53rd
Vacant			Apr 30, 1894 – May 5, 1894
12	John Patton Jr.	Republican	May 5, 1894 – Jan 24, 1895	Appointed to continue Stockbridge's term. Lost election to finish term.
13	Julius C. Burrows	Republican	Jan 24, 1895 – Mar 3, 1911	Elected in 1895 to finish Stockbridge's term.
						54th	11	Re-elected in 1895.
						55th
				Re-elected in 1899.	12	56th
						57th	12	Re-elected in 1901. Died.
									Aug 10, 1902 – Sep 27, 1902	Vacant
								Appointed to continue McMillan's term. Elected in 1903 to finish McMillan's term.^[2] Died.	Sep 27, 1902 – Jan 24, 1907	Republican	Russell A. Alger	10
						58th
				Re-elected in 1905. Lost renomination.	13	59th
									Jan 24, 1907 – Feb 9, 1907	Vacant
								Elected in 1907 to finish McMillan's term, having already been elected to the next term.^[3]	Feb 9, 1907 – Mar 3, 1919	Republican	William A. Smith	11
						60th	13	Elected in 1907.^[3]
						61st
14	Charles E. Townsend	Republican	Mar 4, 1911 – Mar 3, 1923	Elected in 1911.	14	62nd
						63rd	14	Re-elected in 1913. Retired.
						64th
				Re-elected in 1916. Lost re-election.	15	65th
						66th	15	Elected in 1918. Resigned.	Mar 4, 1919 – Nov 18, 1922	Republican	Truman H. Newberry	12
						67th		Elected in 1918. Resigned.	Mar 4, 1919 – Nov 18, 1922	Republican	Truman H. Newberry	12
									Nov 18, 1922 – Nov 29, 1922	Vacant
								Appointed to continue Newberry's term. Elected in 1924 to finish Newberry's term.	Nov 29, 1922 – Oct 22, 1936	Republican	James Couzens	13
15	Woodbridge N. Ferris	Democratic	Mar 4, 1923 – Mar 23, 1928	Elected in 1922. Died.	16	68th
						69th	16	Re-elected in 1924.
						70th
Vacant			Mar 23, 1928 – Mar 31, 1928
16	Arthur Vandenberg	Republican	Mar 31, 1928 – Apr 18, 1951	Appointed to continue Ferris's term. Elected in 1928 to finish Ferris's term.
				Elected in 1928.	17	71st
						72nd	17	Re-elected in 1930. Died.
						73rd
				Re-elected in 1934.	18	74th
									Oct 22, 1936 – Nov 19, 1936	Vacant
								Appointed to finish Couzens's term, having already been elected to the next term.	Nov 19, 1936 – Jan 3, 1943	Democratic	Prentiss M. Brown	14
						75th	18	Elected in 1936. Lost re-election.
						76th
				Re-elected in 1940.	19	77th
						78th	19	Elected in 1942.	Jan 3, 1943 – Jan 3, 1955	Republican	Homer Ferguson	15
						79th
				Re-elected in 1946. Died.	20	80th
						81st	20	Re-elected in 1948. Lost re-election.
						82nd
Vacant			Apr 18, 1951 – Apr 23, 1951
17	Blair Moody	Democratic	Apr 23, 1951 – Nov 4, 1952	Appointed to continue Vandenberg's term. Lost election to finish term.
18	Charles E. Potter	Republican	Nov 5, 1952 – Jan 3, 1959	Elected in 1952 to finish Vandenberg's term.
				Elected to full term in 1952. Lost re-election.	21	83rd
						84th	21	Elected in 1954.	Jan 3, 1955 – Apr 30, 1966	Democratic	Patrick V. McNamara	16
						85th
19	Philip Hart	Democratic	Jan 3, 1959 – Dec 26, 1976	Elected in 1958.	22	86th
						87th	22	Re-elected in 1960. Died.
						88th
				Re-elected in 1964.	23	89th
									Apr 30, 1966 – May 11, 1966	Vacant
								Appointed to finish McNamara's term.	May 11, 1966 – Jan 3, 1979	Republican	Robert P. Griffin	17
						90th	23	Elected to full term in 1966
						91st
				Re-elected in 1970. Announced retirement, then died before the end of the term.	24	92nd
						93rd	24	Re-elected in 1972. Lost re-election.
						94th
Vacant			Dec 26, 1976 – Dec 30, 1976
20	Donald Riegle	Democratic	Dec 30, 1976 – Jan 3, 1995	Appointed early to finish Hart's term, having already been elected to the next term.
				Elected in 1976	25	95th
						96th	25	Elected in 1978.	Jan 3, 1979 – Jan 3, 2015	Democratic	Carl Levin	18
						97th
				Re-elected in 1982.	26	98th
						99th	26	Re-elected in 1984.
						100th
				Re-elected in 1988. Retired.	27	101st
						102nd	27	Re-elected in 1990.
						103rd
21	Spencer Abraham	Republican	Jan 3, 1995 – Jan 3, 2001	Elected in 1994. Lost re-election.	28	104th
						105th	28	Re-elected in 1996.
						106th
22	Debbie Stabenow	Democratic	Jan 3, 2001 – Jan 3, 2025	Elected in 2000.	29	107th
						108th	29	Re-elected in 2002.
						109th
				Re-elected in 2006.	30	110th
						111th	30	Re-elected in 2008. Retired.
						112th
				Re-elected in 2012.	31	113th
						114th	31	Elected in 2014.	Jan 3, 2015 – present	Democratic	Gary Peters	19
						115th
				Re-elected in 2018. Retired.	32	116th
						117th	32	Re-elected in 2020.
						118th
23	Elissa Slotkin	Democratic	Jan 3, 2025 – present	Elected in 2024.	33	119th
						120th	33	To be determined in the 2026 election.
						121st
To be determined in the 2030 election.					34	122nd
#	Senator	Party	Years in office	Electoral history	T	C	T	Electoral history	Years in office	Party	Senator	#
Class 1						C	Class 2