Resignation from the United States Senate

A member of the United States Senate can resign by writing a letter of resignation to the governor of the state that the senator represents.[1] Under Article I, Section 3 of the Constitution of the United States, and under the Seventeenth Amendment, in case of a vacancy in the Senate resulting from resignation, the executive authority of the state (today known in every state as the governor) can make a temporary appointment to fill the vacancy if so authorized by the state legislature. A special election may follow depending on timing and state law. Whenever a senator needs to be appointed or elected, the Secretary of the Senate mails one of three forms to the state's governor to inform that person of the proper wording to certify the appointment of a new Senator.[2]

The first resignation from the Senate was that of William Paterson of New Jersey on November 13, 1790, who resigned in order to accept the office of Governor of New Jersey.[citation needed] His resignation was only the third time a person ceased to hold a seat in the Senate, which had first convened during the preceding year, 1789. The earlier ones resulted from the death of Senator William Grayson of Virginia, and the expiration of the term of the temporary senator John Walker of Virginia, who was appointed by the Governor of Virginia to hold that office until a successor could be elected in November.[citation needed]

Before 1796, eight senators resigned. Nine senators resigned during that year—a record-high number that stands to this day.[citation needed] Most resignations have been motivated either by declining health or a decision to accept another office.[citation needed] Sixteen persons have resigned from the Senate twice and two have resigned three times.[citation needed]

1789 to 1799

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NameStateDate of resignationNotes
William PatersonNew JerseyNovember 13, 1790Resigned to become Governor of New Jersey
Samuel JohnsonConnecticutMarch 3, 1791
Richard LeeVirginiaOctober 8, 1792
Charles CarrollMarylandNovember 30, 1792
George ReadDelawareSeptember 18, 1793
James MonroeVirginiaMarch 27, 1794
John Taylor of CarolineVirginiaMay 11, 1794
James JacksonGeorgiaNovember 16, 1795
Oliver EllsworthConnecticutMarch 8, 1796
Rufus KingNew YorkMay 23, 1796
Caleb StrongMassachusettsJune 1, 1796
George CabotMassachusettsJune 9, 1796
Jonathan Trumbull Jr.ConnecticutJune 10, 1796
Moses RobinsonVermontOctober 15, 1796
Richard PottsMarylandOctober 24, 1796
Pierce ButlerSouth CarolinaOctober 25, 1796
Frederick FrelinghuysenNew JerseyNovember 12, 1796
William CockeTennesseeSeptember 26, 1797
William BradfordRhode IslandOctober ??, 1797
Isaac TichenorVermontOctober 17, 1797Resigned to become Governor of Vermont[3]
John HenryMarylandDecember 10, 1797
Philip SchuylerNew YorkJanuary 3, 1798
John ViningDelawareJanuary 19, 1798
Andrew JacksonTennesseeApril 1, 1798
John Sloss HobartNew YorkApril 16, 1798
John HunterSouth CarolinaNovember 26, 1798
John RutherfurdNew JerseyDecember 5, 1798
Joseph AndersonTennesseeMarch 3, 1799

1800 to 1849

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NameStateDate of resignationNotes
Samuel DexterMassachusettsMay 30, 1800Resigned to take office as United States Secretary of War[4]
John LauranceNew YorkAugust 1, 1800
Benjamin GoodhueMassachusettsNovember 8, 1800
James LloydMarylandDecember 1, 1800
James SchuremanNew JerseyFebruary 16, 1801
Henry LatimerDelawareFebruary 28, 1801
Ray GreeneRhode IslandMarch 5, 1801
Charles PinckneySouth CarolinaJune 6, 1801
Samuel LivermoreNew HampshireJune 12, 1801
Elijah PaineVermontSeptember 1, 1801
John Armstrong Jr.New YorkFebruary 5, 1802
James SheafeNew HampshireJune 14, 1802
Dwight FosterMassachusettsMarch 2, 1803
DeWitt ClintonNew YorkNovember 4, 1803
Theodorus BaileyNew YorkJanuary 16, 1804
John Armstrong Jr.New YorkFebruary 23, 1804
Abraham B. VenableVirginiaJune 7, 1804
John Armstrong Jr.New YorkJune 30, 1804
William H. WellsDelawareNovember 6, 1804
William GilesVirginiaDecember 3, 1804
Andrew MooreVirginiaDecember 3, 1804Resigned his Class 2 senatorship when elected to fill a vacant Class 1 senatorship
John BreckinridgeKentuckyAugust 7, 1805
Robert WrightMarylandNovember 12, 1806
John AdairKentuckyNovember 18, 1806
David StoneNorth CarolinaFebruary 17, 1807
James FennerRhode IslandSeptember ??, 1807
Israel SmithVermontOctober 1, 1807
John SmithOhioApril 25, 1808Resigned after being indicted but not expelled in a 19–10 vote[5]
John Quincy AdamsMassachusettsJune 8, 1808
Samuel MaclayPennsylvaniaJanuary 4, 1809
Aaron KitchellNew JerseyMarch 3, 1809
Daniel SmithTennesseeMarch 31, 1809
John MilledgeGeorgiaNovember 14, 1809
Buckner ThrustonKentuckyDecember 18, 1809
Nahum ParkerNew HampshireJune 1, 1810
James HillhouseConnecticutJune 10, 1810
Return J. Meigs Jr.OhioDecember 8, 1810
Thomas SumterSouth CarolinaDecember 16, 1810
Jenkin WhitesideTennesseeOctober 8, 1811
Christopher ChamplinRhode IslandOctober 12, 1811
Jean Noel DestréhanLouisianaOctober 1, 1812
James BayardDelawareMarch 3, 1813
Dudley ChaseVermontMarch 3, 1813
William CrawfordGeorgiaMarch 23, 1813
James LloydMassachusettsMay 1, 1813
Chauncey GoodrichConnecticutMay 13, 1813
George W. CampbellTennesseeFebruary 11, 1814
Michael LeibPennsylvaniaFebruary 14, 1814
George BibbKentuckyAugust 23, 1814
Thomas WorthingtonOhioDecember 1, 1814
Jesse BledsoeKentuckyDecember 24, 1814
David StoneNorth CarolinaDecember 24, 1814
William GilesVirginiaMarch 3, 1815
Francis Locke Jr.North CarolinaDecember 5, 1815
William T. BarryKentuckyMay 1, 1816
Christopher GoreMassachusettsMay 30, 1816
John TaylorSouth CarolinaNovember ??, 1816
Wyatt BibbGeorgiaNovember 9, 1816
James TurnerNorth CarolinaNovember 21, 1816
Goodloe HarperMarylandDecember 6, 1816
Jeremiah MasonNew HampshireJune 16, 1817
James FiskVermontJanuary 8, 1818
George W. CampbellTennesseeApril 20, 1818
Eli AshmunMassachusettsMay 10, 1818
George TroupGeorgiaSeptember 23, 1818
John ForsythGeorgiaFebruary 17, 1819
John J. CrittendenKentuckyMarch 3, 1819
John Wayles EppesVirginiaDecember 4, 1819
Prentiss MellenMassachusettsMay 15, 1820
Walter LeakeMississippiMay 15, 1820
William LoganKentuckyMay 28, 1820
James WilsonNew JerseyJanuary 8, 1821
Freeman WalkerGeorgiaAugust 6, 1821
Harrison Gray OtisMassachusettsMay 30, 1822
John Williams WalkerAlabamaDecember 12, 1822
James PleasantsVirginiaDecember 15, 1822
Caesar Augustus RodneyDelawareJanuary 29, 1823
Samuel SouthardNew JerseyMarch 3, 1823
James BrownLouisianaDecember 10, 1823
Ninian EdwardsIllinoisMarch 3, 1824
Henry JohnsonLouisianaMay 27, 1824
James BarbourVirginiaMarch 7, 1825
David HolmesMississippiSeptember 25, 1825
Andrew JacksonTennesseeOctober 14, 1825
James DeWolfRhode IslandOctober 31, 1825
Edward LloydMarylandJanuary 14, 1826
James LloydMassachusettsMay 23, 1826
Henry HarrisonOhioMay 20, 1828
Albion ParrisMaineAugust 26, 1828
Thomas CobbGeorgiaNovember 7, 1828
Nathaniel MaconNorth CarolinaDecember 14, 1828
Ephraim BatemanNew JerseyJanuary 12, 1829
Mahlon DickersonNew JerseyJanuary 30, 1829
John BerrienGeorgiaMarch 9, 1829
John BranchNorth CarolinaMarch 9, 1829
John EatonTennesseeMarch 9, 1829
Louis McLaneDelawareApril 16, 1829
Edward LivingstonLouisianaMay 24, 1831
Issac BarnardPennsylvaniaDecember 6, 1831
Powhatan EllisMississippiJuly 16, 1832
Littleton TazewellVirginiaJuly 16, 1832
Robert HayneSouth CarolinaDecember 13, 1832
William MarcyNew YorkJanuary 1, 1833
George TroupGeorgiaNovember 8, 1833
William RivesVirginiaFebruary 22, 1834
John ForsythGeorgiaJune 27, 1834
Ezekiel ChambersMarylandDecember 20, 1834
Peleg SpragueMaineJanuary 1, 1835
Charles GayarréLouisianaJanuary ??, 1836
John TylerVirginiaFebruary 29, 1836
Ether ShepleyMaineMarch 3, 1836
Willie MangumNorth CarolinaMarch 19, 1836
Isaac HillNew HampshireMay 30, 1836
Arnold NaudainDelawareJune 16, 1836
Benjamin LeighVirginiaJuly 4, 1836
John ClaytonDelawareDecember 29, 1836
Alexander PorterLouisianaJanuary 5, 1837
Richard ParkerVirginiaMarch 13, 1837
John McKinleyAlabamaApril 22, 1837
Pendleton KingGeorgiaNovember 1, 1837
John BlackMississippiJanuary 22, 1838
Felix GrundyTennesseeJuly 4, 1838
James F. TrotterMississippiJuly 10, 1838
Ephraim FosterTennesseeMarch 3, 1839
Richard BayardDelawareSeptember 19, 1839
Lawson WhiteTennesseeJanuary 13, 1840
Robert StrangeNorth CarolinaNovember 16, 1840
Bedford BrownNorth CarolinaNovember 16, 1840
John DavisMassachusettsJanuary 5, 1841
Daniel WebsterMassachusettsFebruary 22, 1841Resigned to become United States Secretary of State[6]
Comer ClayAlabamaNovember 15, 1841
Franklin PierceNew HampshireFebruary 28, 1842
Alexander MoutonLouisianaMarch 1, 1842
Henry ClayKentuckyMarch 31, 1842
Samuel PrentissVermontApril 11, 1842
Samuel SouthardNew JerseyJune 26, 1842
Reuel WilliamsMaineFebruary 15, 1843
John CalhounSouth CarolinaMarch 3, 1843
William SpragueRhode IslandJanuary 17, 1844
William KingAlabamaApril 15, 1844
Nathaniel TallmadgeNew YorkJune 17, 1844
Silas Wright Jr.New YorkNovember 26, 1844
John BerrienGeorgiaMarch 1, 1845
Elliot HugerSouth CarolinaMarch 3, 1845
Levi WoodburyNew HampshireSeptember 20, 1845
William Haywood Jr.North CarolinaJuly 25, 1846
Walter ColquittGeorgiaFebruary 4, 1848
Ambrose SevierArkansasMarch 15, 1848
Lewis CassMichiganMay 29, 1848
John CrittendenKentuckyJune 12, 1848
Arthur BagbyAlabamaJune 16, 1848
John ClaytonDelawareFebruary 2, 1849
Reverdy JohnsonMarylandMarch 7, 1849

1850 to 1899

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NameStatePartyDate of resignationNotes
Daniel WebsterMassachusettsWhigJuly 22, 1850Resigned again to again take office as United States Secretary of State[7]
Jefferson DavisMississippiDemocraticSeptember 23, 1851Resigned to run for Governor of Mississippi
Robert RhettSouth CarolinaDemocraticMay 7, 1852
John BerrienGeorgiaWhigMay 28, 1852
William R. KingAlabamaDemocraticDecember 20, 1852Resigned to take office as Vice President of the United States
Robert StocktonNew JerseyDemocraticJanuary 10, 1853Resigned to serve as president of the Delaware and Raritan Canal Company
Solon BorlandArkansasDemocraticApril 11, 1853Resigned on being appointed as United States Minister to Nicaragua
Pierre SouléLouisianaDemocraticApril 11, 1853Resigned on being appointed as United States Minister to Spain
Edward EverettMassachusettsWhigJune 1, 1854Resigned due to ill health
Augustus C. DodgeIowaDemocraticFebruary 22, 1855Resigned on being appointed as United States Minister to Spain
Hannibal HamlinMaineRepublicanJanuary 7, 1857Resigned to take office as Governor of Maine
Asa BiggsNorth CarolinaDemocraticMay 5, 1858Resigned to take office as a judge of the United States District Court for the District of North Carolina
Thomas Lanier ClingmanNorth CarolinaDemocraticMay 7, 1858
Hannibal HamlinMaineRepublicanJanuary 17, 1861Resigned to take office as Vice President of the United States
Jefferson DavisMississippiDemocraticJanuary 21, 1861Resigned because State seceded from the Union. Subsequently elected Major General of the Mississippi Militia and President of the Confederate States of America.
John SlidellLouisianaDemocraticFebruary 4, 1861Resigned because State seceded from the Union.
Thomas BraggNorth CarolinaDemocraticMarch 6, 1861Resigned because State seceded from the Union.
Salmon P. ChaseOhioRepublicanMarch 6, 1861Resigned to take office as United States Secretary of the Treasury
Andrew JohnsonTennesseeDemocraticMarch 4, 1862Resigned to take office as Military Governor of Tennessee
James F. SimmonsRhode IslandRepublicanAugust 15, 1862Resigned after a case for expulsion for corruption was declined[8]
Waitman T. WilleyVirginiaUnionistMarch 3, 1863Resigned to become Senator of newly created West Virginia.
James A. Bayard Jr.DelawareDemocraticJanuary 29, 1864Resigned in protest of new Senate Loyalty Oath[9]
William P. FessendenMaineRepublicanJuly 1, 1864Resigned to take office as United States Secretary of the Treasury
James HarlanIowaRepublicanMay 15, 1865Resigned to take office as the United States Secretary of the Interior
Daniel ClarkNew HampshireRepublicanJuly 27, 1866Resigned to take office as a judge of the United States District Court for the District of New Hampshire
James GurthrieKentuckyDemocraticFebruary 7, 1868Resigned due to ill health[10]
Reverdy JohnsonMarylandDemocraticJuly 10, 1868
James W. GrimesIowaRepublicanDecember 6, 1869Resigned due to ill health[11]
Charles D. DrakeMissouriRepublicanDecember 19, 1870Resigned to take office as Chief Justice of the United States Court of Claims
William Pitt KelloggLouisianaRepublicanNovember 1, 1872Resigned to take office as Governor of Louisiana
Henry WilsonMassachusettsRepublicanMarch 3, 1873Resigned to take office as Vice President of the United States
Alexander CaldwellKansasRepublicanMarch 24, 1873Resigned before a vote could be taken on his expulsion for corruption[12]
Eugene CasserlyCaliforniaDemocraticNovember 29, 1873
Adelbert AmesMississippiRepublicanJanuary 4, 1874Resigned to take office as Governor of Mississippi
Lot M. MorrillMaineRepublicanJuly 7, 1876Resigned to take office as United States Secretary of the Treasury
John ShermanOhioRepublicanMarch 8, 1877Resigned to take office as United States Secretary of the Treasury[4]
Isaac P. ChristiancyMichiganRepublicanFebruary 10, 1879Resigned due to ill health[13]
John Brown GordonGeorgiaDemocraticMay 26, 1880
James G. BlaineMaineRepublicanMarch 5, 1881Resigned to take office as United States Secretary of State
Samuel J. KirkwoodIowaRepublicanMarch 7, 1881Resigned to take office as United States Secretary of the Interior
William WindomMinnesotaRepublicanMarch 7, 1881Resigned to take office as United States Secretary of the Treasury
Roscoe ConklingNew YorkRepublicanMay 16, 1881Resigned in protest of the appointment of a New York City customs collector by President James A. Garfield[14]
Thomas PlattNew YorkRepublicanMay 16, 1881Resigned in support of fellow Senator Conkling's protest[14]
Henry M. TellerColoradoRepublicanApril 17, 1882Resigned to take office as United States Secretary of the Interior
Augustus Hill GarlandArkansasDemocraticMarch 6, 1885Resigned to take office as United States Attorney General
Thomas F. BayardDelawareDemocraticMarch 6, 1885Resigned to take office as United States Secretary of State
Howell Edmunds JacksonTennesseeDemocraticApril 14, 1886Resigned to take office as a judge of the United States Circuit Courts for the Sixth Circuit
Jonathan ChaceRhode IslandRepublicanApril 9, 1889
John Henninger ReaganTexasDemocraticJune 10, 1891Resigned to take office as the chairman of the Railroad Commission of Texas[15]
John CarlisleKentuckyDemocraticFebruary 4, 1893Resigned to take office as United States Secretary of the Treasury
Edward Douglass WhiteLouisianaDemocraticMarch 12, 1894Resigned to take office as an Associate Justice of the Supreme Court of the United States
John ShermanOhioRepublicanMarch 4, 1897Resigned to take office as United States Secretary of State

1900 to 1949

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NameStatePartyDate of resignationNotes
William A. ClarkMontanaDemocraticMay 15, 1900Resigned before a Senate vote on declaring his election void due to bribery[16]
Charles W. FairbanksIndianaRepublicanMarch 3, 1905Resigned to take office as Vice President of the United States
Joseph BurtonKansasRepublicanJune 4, 1906Resigned following corruption charges (Burton v. United States)[17]
John Coit SpoonerWisconsinRepublicanApril 30, 1907
Philander C. KnoxPennsylvaniaRepublicanMarch 4, 1909Resigned to take office as United States Secretary of State
Fountain L. ThompsonNorth DakotaDemocraticJanuary 31, 1910
Joseph M. TerrellGeorgiaDemocraticJuly 14, 1911Resigned for health reasons
Joseph Weldon BaileyTexasDemocraticJanuary 3, 1913
Warren G. HardingOhioRepublicanJanuary 13, 1921First President of the United States to be elected during his term as a Senator
John F. NugentIdahoDemocraticJanuary 14, 1921Resigned to take office as a member of the Federal Trade Commission
Albert B. FallNew MexicoRepublicanMarch 4, 1921Resigned to take office as United States Secretary of the Interior
Josiah O. WolcottDelawareDemocraticJuly 2, 1921Resigned to take office as Chancellor of Delaware
William KenyonIowaRepublicanFebruary 24, 1922Resigned to take office as a federal judge on the United States Court of Appeals for the 8th Circuit
Truman NewberryMichiganRepublicanNovember 18, 1922[17]Resigned after being condemned for violating campaign financing rules[18]
Frank L. SmithIllinoisRepublicanFebruary 9, 1928Resigned after the Senate voted to refuse to seat him due to fraud and corruption[19]
T. Coleman du PontDelawareRepublicanDecember 8, 1928Resigned to allow early appointment of successor
Charles CurtisKansasRepublicanMarch 3, 1929Resigned to take office as Vice President of the United States
Evans EdgeNew JerseyRepublicanNovember 21, 1929Resigned to take office as United States Ambassador to France
Frederic M. SackettKentuckyRepublicanJanuary 9, 1930Resigned to take office as United States Ambassador to Germany
Cordell HullTennesseeDemocraticMarch 3, 1933Resigned to take office as United States Secretary of State
Claude A. SwansonVirginiaDemocraticMarch 3, 1933Resigned to take office as United States Secretary of the Navy
Sam G. BrattonNew MexicoDemocraticJune 24, 1933Resigned to take office as a federal judge on the United States Court of Appeals for the 10th Circuit
Hugo BlackAlabamaDemocraticAugust 19, 1937Resigned to take office as an associate justice of the United States Supreme Court
Dixie Bibb GravesAlabamaDemocraticJanuary 10, 1938
Harry MooreNew JerseyDemocraticJanuary 17, 1938Resigned to take office as Governor of New Jersey
Frederick SteiwerOregonRepublicanJanuary 31, 1938
William Gibbs McAdooCaliforniaDemocraticNovember 8, 1938
Matthew M. NeelyWest VirginiaDemocraticJanuary 12, 1941Resigned to take office as Governor of West Virginia
John E. MillerArkansasDemocraticMarch 31, 1941Resigned to take office as a federal judge on the District Court for the Western District of Arkansas
James ByrnesSouth CarolinaDemocraticJuly 8, 1941Resigned to take office as an associate justice of the United States Supreme Court
Henry Cabot Lodge Jr.MassachusettsRepublicanFebruary 3, 1944Resigned to return to active duty in the United States Army during the Second World War
Homer BoneWashingtonDemocraticNovember 13, 1944Resigned to take office as Judge on the United States Court of Appeals for the Ninth Circuit.
Sinclair WeeksMassachusettsRepublicanDecember 19, 1944
Monrad WallgrenWashingtonDemocraticJanuary 9, 1945Resigned to take office as Governor of Washington
Harry TrumanMissouriDemocraticJanuary 17, 1945Resigned to take office as Vice President of the United States
Harold BurtonOhioRepublicanSeptember 30, 1945Resigned to take office as an associate justice of the United States Supreme Court
Happy ChandlerKentuckyDemocraticNovember 1, 1945Resigned to become Commissioner of Baseball
Warren AustinVermontRepublicanAugust 2, 1946Resigned to take office as the United States Ambassador to the United Nations
Hugh MitchellWashingtonDemocraticDecember 25, 1946Resigned to allow early appointment of successor
Vera BushfieldSouth DakotaRepublicanDecember 26, 1948Resigned to allow early appointment of successor
Alben BarkleyKentuckyDemocraticJanuary 19, 1949Resigned to take office as Vice President of the United States
Robert WagnerNew YorkDemocraticJune 28, 1949Resigned for health reasons
Howard McGrathRhode IslandDemocraticAugust 23, 1949Resigned to take office as United States Attorney General
Raymond BaldwinConnecticutRepublicanDecember 16, 1949Resigned to take office as an associate justice on the Connecticut Supreme Court of Errors

1950 to 1999

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NameStatePartyDate of resignationNotes
Sheridan DowneyCaliforniaDemocraticNovember 30, 1950Resigned for health reasons
Ralph BrewsterMaineRepublicanDecember 31, 1952
Richard NixonCaliforniaRepublicanJanuary 1, 1953Resigned to take office as Vice President of the United States
Charles DanielSouth CarolinaDemocraticDecember 23, 1954Resigned to allow early appointment of successor
Hazel AbelNebraskaRepublicanDecember 31, 1954Resigned to allow early appointment of successor
Strom ThurmondSouth CarolinaDemocraticApril 4, 1956[20]Resigned to fulfill a pledge to contest a full election after first being chosen as a write-in candidate
Price DanielTexasDemocraticJanuary 14, 1957[21]Resigned to take office as Governor of Texas
John F. KennedyMassachusettsDemocraticDecember 22, 1960Resigned to take office as President of the United States[22]
Lyndon JohnsonTexasDemocraticJanuary 3, 1961[23]Resigned to take office as Vice President of the United States[22]
Hubert HumphreyMinnesotaDemocraticDecember 29, 1964Resigned to take office as Vice President of the United States
Pierre SalingerCaliforniaDemocraticDecember 31, 1964Resigned to allow early appointment of successor
Harry ByrdVirginiaDemocraticNovember 10, 1965Resigned for health reasons[24]
John WilliamsDelawareRepublicanDecember 31, 1970Resigned to allow early appointment of successor
George MurphyCaliforniaRepublicanJanuary 2, 1971Resigned to allow early appointment of successor
William SaxbeOhioRepublicanJanuary 3, 1974Resigned to take office as United States Attorney General[25]
Alan BibleNevadaDemocraticDecember 17, 1974Resigned to allow early appointment of successor
Wallace BennettUtahRepublicanDecember 20, 1974Resigned to allow early appointment of successor[26]
Howard MetzenbaumOhioDemocraticDecember 23, 1974Resigned to allow early appointment of successor
Marlow CookKentuckyRepublicanDecember 27, 1974Resigned to allow early appointment of successor
J. William FulbrightArkansasDemocraticDecember 31, 1974
Edward GurneyFloridaRepublicanDecember 31, 1974Resigned after declining to seek re-election while under indictment in an influence peddling scandal[27]
Sam ErvinNorth CarolinaDemocraticDecember 31, 1974
Roman HruskaNebraskaRepublicanDecember 27, 1976Resigned to allow early appointment of successor
Stuart SymingtonMissouriDemocraticDecember 27, 1976Resigned to allow early appointment of successor
John PastoreRhode IslandDemocraticDecember 28, 1976Resigned to allow early appointment of successor
Walter MondaleMinnesotaDemocraticDecember 30, 1976[28]Resigned to take office as Vice President of the United States
Paul HatfieldMontanaDemocraticDecember 12, 1978Resigned to allow early appointment of successor
James PearsonKansasRepublicanDecember 23, 1978Resigned to allow early appointment of successor
James EastlandMississippiDemocraticDecember 27, 1978Resigned to allow early appointment of successor
Wendell AndersonMinnesotaDemocraticDecember 29, 1978Resigned to allow early appointment of successor
Clifford HansenWyomingRepublicanDecember 31, 1978Resigned to allow early appointment of successor
Edmund MuskieMaineDemocraticMay 7, 1980Resigned to take office as United States Secretary of State[4]
John DurkinNew HampshireDemocraticDecember 29, 1980Resigned to allow early appointment of successor
Richard StoneFloridaDemocraticDecember 31, 1980Resigned to allow early appointment of successor
Harrison A. WilliamsNew JerseyDemocraticMarch 11, 1982[17]Resigned after conviction of bribery in the Abscam scandal ahead of a vote on his expulsion
Nicholas F. BradyNew JerseyRepublicanDecember 27, 1982Resigned to allow early appointment of successor
Paul TsongasMassachusettsDemocraticJanuary 2, 1985Resigned to allow early appointment of successor and for health reasons
Dan QuayleIndianaRepublicanJanuary 3, 1989Resigned to take office as Vice President of the United States
Gordon J. HumphreyNew HampshireRepublicanDecember 4, 1990Resigned to take seat in New Hampshire Senate
Pete WilsonCaliforniaRepublicanJanuary 7, 1991Resigned to take office as Governor of California
Kent ConradNorth DakotaDemocraticDecember 14, 1992Resigned after winning a special election to fill North Dakota's other Senate seat
Al GoreTennesseeDemocraticJanuary 2, 1993Resigned to take office as Vice President of the United States.
Lloyd BentsenTexasDemocraticJanuary 20, 1993Resigned to take office as United States Secretary of the Treasury[4]
David BorenOklahomaDemocraticDecember 15, 1994Resigned to become President of the University of Oklahoma.[29]
Bob PackwoodOregonRepublicanOctober 1, 1995Resigned after the Senate Ethics Committee recommended his expulsion for ethical misconduct
Bob DoleKansasRepublicanJune 11, 1996Resigned to run for President of the United States[30]

2000 to present

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NameStatePartyDate of resignationNotes
Phil GrammTexasRepublicanNovember 30, 2002Resigned to allow early appointment of successor.
Frank MurkowskiAlaskaRepublicanDecember 2, 2002Resigned to become Governor of Alaska.
Jon CorzineNew JerseyDemocraticJanuary 17, 2006Resigned to become Governor of New Jersey.
Trent LottMississippiRepublicanDecember 18, 2007Resigned to pursue a private-sector career.[31]
Barack ObamaIllinoisDemocraticNovember 16, 2008Resigned to take office as President of the United States.[32]
Joe BidenDelawareDemocraticJanuary 15, 2009Resigned to take office as Vice President of the United States.
Ken SalazarColoradoDemocraticJanuary 20, 2009Resigned to become United States Secretary of the Interior.
Hillary ClintonNew YorkDemocraticJanuary 21, 2009Resigned to become United States Secretary of State.[33]
Mel MartínezFloridaRepublicanSeptember 9, 2009Resigned early after declining to seek re-election.[34]
John EnsignNevadaRepublicanMay 3, 2011Resigned during a Senate Ethics Committee investigation into events surrounding an extramarital affair.[35]
Jim DeMintSouth CarolinaRepublicanJanuary 1, 2013Resigned to become President of The Heritage Foundation.
John KerryMassachusettsDemocraticFebruary 1, 2013Resigned to become United States Secretary of State.
Max BaucusMontanaDemocraticFebruary 6, 2014Resigned to become Ambassador to China.
Tom CoburnOklahomaRepublicanJanuary 3, 2015Announced on January 16, 2014 and resigned at the end of 113th Congress,[36] so a special election to choose his successor could be held in conjunction with the regular election.
Jeff SessionsAlabamaRepublicanFebruary 8, 2017Resigned to become United States Attorney General.
Al FrankenMinnesotaDemocraticJanuary 2, 2018Resigned after allegations of sexual harassment. He said he expected that an investigation would clear him but he could not do his job and undergo investigation at the same time.[37][38]
Thad CochranMississippiRepublicanApril 1, 2018Resigned because of health issues.[39]
Jon KylArizonaRepublicanDecember 31, 2018Resigned so that a "new appointee can begin the new term with all other Senators."[40] Kyl was previously appointed to fill the seat left vacant by the death of John McCain.
Johnny IsaksonGeorgiaRepublicanDecember 31, 2019Resigned because of health issues.[41]
Kamala HarrisCaliforniaDemocraticJanuary 18, 2021Resigned to take office as Vice President of the United States.
Jim InhofeOklahomaRepublicanJanuary 3, 2023Announced on February 24, 2022 and resigned at the end of the 117th Congress,[42] so a special election to choose his successor could be held in conjunction with the regular election.
Ben SasseNebraskaRepublicanJanuary 8, 2023Announced on October 6, 2022 and resigned to become President of the University of Florida.[43]

References

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  1. ^ Lalor, John Joseph (1893). Cyclopaedia of Political Science, Political Economy, and of the Political History of the United States. Vol. 3. C.E. Merrill & Company. p. 614. Retrieved July 23, 2019.
  2. ^ "The Term of A Senator – When Does It Begin and End? – Senate 98-29" (PDF). United States Senate. United States Printing Office. pp. 14–15. Retrieved November 13, 2015.
  3. ^ "TICHENOR, Isaac – Biographical Information". bioguide.congress.gov. Retrieved November 13, 2015.
  4. ^ a b c d "1787: From the Senate to the Cabinet, May 13, 1800". United States Senate. Retrieved November 24, 2015.
  5. ^ "1801: John Smith Resigns Under Fire – April 25, 1808". United States Senate. Retrieved November 13, 2015.
  6. ^ "1801: Daniel Webster Quits the Senate – July 22, 1850". United States Senate. Retrieved November 13, 2015.
  7. ^ "U.S. Senate: 1801: Speech Costs Senator his Seat – March 7, 1850". United States Senate. Retrieved November 24, 2015.
  8. ^ "U.S. Senate: James Simmons expulsion case". United States Senate. Retrieved November 13, 2015.
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  12. ^ "The Election Case of Samuel C. Pomeroy and Alexander Caldwell of Kansas (1873)". United States Senate. Retrieved May 26, 2019.
  13. ^ "CHRISTIANCY, Isaac Peckham, (1812 - 1890)". Biographical Directory United States Congress. Retrieved May 26, 2019.
  14. ^ a b "1878: Both New York Senators Resign – May 16, 1881". United States Senate. Retrieved November 13, 2015.
  15. ^ Senate, United States Congress (1903). Compilation of Senate Election Cases from 1789 to 1885. U.S. Government Printing Office. p. 48.
  16. ^ "The Election Case of William A. Clark of Montana (1900)". United States Senate. Retrieved April 16, 2019.
  17. ^ a b c "U.S. Senate: Expulsion and Censure". United States Senate. Retrieved November 13, 2015.
  18. ^ "1921: Senator Condemned for Excessive Campaign Expenditures – January 12, 1922". United States Senate. Retrieved November 24, 2015.
  19. ^ "The Election Case of Frank L. Smith of Illinois (1928)". United States Senate. Retrieved April 16, 2019.
  20. ^ "The Term of A Senator – When Does It Begin and End? – Senate 98–29" (PDF). United States Senate. United States Printing Office. p. 5. Retrieved November 13, 2015.
  21. ^ "The Term of A Senator – When Does It Begin and End? – Senate 98–29" (PDF). United States Senate. United States Printing Office. p. 9. Retrieved November 13, 2015.
  22. ^ a b "1941: Two Senators to the White House". United States Senate. Retrieved November 13, 2015.
  23. ^ "The Term of A Senator – When Does It Begin and End? – Senate 98–29" (PDF). United States Senate. United States Printing Office. p. 11. Retrieved November 13, 2015.
  24. ^ Ayers, B. Drummond (October 20, 1976). "Virginia, a State With Many Changes, is Still Expected to Return Byrd to the Senate". The New York Times.
  25. ^ "Attorney General: William Bart Saxbe". United States Department of Justice. 23 October 2014. Retrieved April 16, 2019.
  26. ^ "Wallace Bennett, Ex-Senator, 95; Utah Republican Served 24 Years". The New York Times. December 20, 1993.
  27. ^ Leithauser, Tom (May 22, 1996). "Ex-senator Ed Gurney Dies". Orlando Sentinel. Retrieved April 16, 2019.
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