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Appointed Senators (1913-Present)

The Seventeenth Amendment to the Constitution (1913) established direct election of senators, as well as a means of filling vacant Senate seats. If a vacancy occurs due to a senator's death, resignation, or expulsion, the Seventeenth Amendment allows state legislatures to empower the governor to appoint a replacement to complete the term or to hold office until a special election can take place. There are a few exceptions to this rule. Some states require a special election to fill a vacancy. A few states require the governor to appoint a replacement of the same political party as the previous incumbent. The date when a senator appointed to fill a vacancy is succeeded by a senator elected to fill the remainder of the term depends on a number of factors.

For more information on how vacancies are filled read, U.S. Senate Vacancies: Contemporary Developments and Perspectives (CRS) (PDF) and the Senate Document The Term of Senator: When Does It Begin and End? (PDF).

This list does not include senators who were subsequently appointed to seats that they had already won due to the resignation or death of their predecessors. The names of current senators appear in bold print.
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SenatorAppointed Effective DateOath DateElected
JohnstonRienzi M. Johnston (D-TX) 19130104Jan 4, 191319130107Jan 7, 1913Did not seek election.
HeiskellJohn N. Heiskell (D-AR) 19130106Jan 6, 191319130109Jan 9, 1913 Did not seek election.
WestWilliam S. West (D-GA) 19140302Mar 2, 191419140306Mar 6, 1914Did not seek election.
CamdenJohnson N. Camden, Jr. (D-KY) 19140616Jun 16, 1914 19140618Jun 18, 1914Yes, on November 3, 1914.
TaggartThomas Taggart (D-IN) 19160320Mar 20, 191619160327Mar 27, 1916No, was defeated on November 7, 1916.
McNaryCharles L. McNary (R-OR) 19170529May 29, 191719170608June 8, 1917Yes, to full term beginning March 4, 1918. 31
HendersonCharles B. Henderson (D-NV) 19180112Jan 12, 191819180124Jan 24, 1918Yes, on November 5, 1918.
NugentJohn F. Nugent (D-ID) 19180322Jan 22, 191819180130Jan 30, 1918Yes, on November 5, 1918.
BairdDavid Baird (R-NJ) 19180223Feb 23, 191819180307Mar 7, 1918Yes, on November 5, 1918.
GuionWalter Guion (D-LA) 19180422Apr 22, 191819184524Apr 24, 1918Did not seek election.
WilfleyXenophon P. Wilfley (D-MO) 19180430Apr 30, 191819180507May 7, 1918No, did not win nomination.
BenetChristie Benet (D-SC) 19180706Jul 6, 191819180708Jul 8, 1918No, did not win nomination.
DrewIrving W. Drew (R-NH) 19180902Sep 2, 191819180911Sep 11, 1918Did not seek election.
MartinGeorge B. Martin (D-KY) 19180907Sep 7, 191819180917Sep 17, 1918Did not seek election.
GlassCarter Glass (D-VA) 19191118Feb 2, 1919 30 19200202Feb 2, 1920Yes, on November 3, 1920.
ComerBraxton B. Comer (D-AL) 19200305Mar 5, 192019200315Mar 15, 1920Did not seek election.
BursumHolm O. Bursum (R-NM) 19210311Mar 11, 192119210411Apr 11, 1921Yes, on September 20, 1921.
du PontThomas C. du Pont (R-DE) 19210707Jul 7, 192119210726Jul 26, 1921No, defeated on November 7, 1922, but was successfully elected in 1924.
CrowWilliam E. Crow (R-PA) 19211017Oct 24, 1921 29 19211024Oct 24, 1921Died on August 2, 1922.
PepperGeorge W. Pepper (R-PA) 19220109Jan 9, 192219220110Jan 10, 1922Yes, on Nov 7, 1922.
RawsonCharles A. Rawson (R-IA) 19220224Feb 24, 192219220224Feb 24, 1922Did not seek election.
ReedDavid A. Reed (R-PA) 19220808Aug 8, 192219220816Aug 16, 1922Yes, on November 7, 1922.
FeltonRebecca L. Felton (D-GA) 19221003Oct 3, 192219221121Nov 21, 1922Did not seek election.
CouzensJames Couzens (R-MI) 19221129Nov 29, 192219221207Dec 7, 1922Yes, on November 4, 1924.
AdamsAlva B. Adams (D-CO) 19230517May 17, 192319231203Dec 3, 1923No, defeated on November 4, 1924, but was successfully elected in 1932.
ButlerWilliam M. Butler (R-MA) 19241113Nov 13, 192419241201Dec 1, 1924No, defeated on November 2, 1926.
WilliamsGeorge H. Williams (R-MO) 19250525May 25, 192519251207Dec 7, 1925No, defeated on November 2, 1926.
RobinsonArthur R. Robinson (R-IN) 19251020Oct 20, 192519251207Dec 7, 1925Yes, on November 2, 1926.
NyeGerald P. Nye (R-ND) 19251114Nov 14, 192519260112Jan 12, 1926Yes, on June 30, 1926.
StewartDavid W. Stewart (R-IA) 19260807Aug 7, 192619261110Nov 10, 1926Yes, on November 2, 1926.
CuttingBronson M. Cutting (R-NM) 19271229Dec 29, 192719280104Jan 4, 1928Yes, on November 6, 1928, to full term beginning Mar 4, 1929; was not a candidate for special election on the same date to fill remainder of the term ending March 3, 1929.
VandenbergArthur H. Vandenberg 19280331Mar 31, 192819280405Apr 5, 1928Yes, on November 6, 1928.
LocherCyrus Locher (D-OH) 19280804Apr 4, 192819280416Apr 16, 1928No, defeated for nomination.
ThomasJohn Thomas (R-ID) 19280630Jun 30, 192819281203Dec 3, 1928Yes, on November 6, 1928.
HastingsDaniel O. Hastings (R-DE) 19281210Dec 10, 192819281213Dec 13, 1928Yes, on Nov 4, 1930.
AllenHenry J. Allen (R-KS) 19290401Apr 1, 192919290415Apr 15, 1929No, defeated on November 4, 1930.
BrockWilliam E. Brock (D-TN) 19290902Sep 2, 192919290909Sep 9, 1929Yes, on November 4, 1930.
McCullochRoscoe C. McCulloch (R-OH) 19290505Nov 5, 192919291112Nov 12, 1929No, defeated on November 4, 1930.
BairdDavid Baird, Jr. (R-NJ) 19291130Nov 30, 192919291209Dec 9, 1929Did not seek election.
SullivanPatrick J. Sullivan (R-WY) 19291205Dec 5, 192919291209Dec 9, 1929Did not seek election.
GrundyJoseph R. Grundy (R-PA) 19291211Dec 11, 192919291212Dec 12, 1929 28 No, defeated for nomination.
RobsionJohn Robsion (R-KY) 19300609Jan 11, 1930 27 19390111Jan 11, 1930No, defeated on November 4, 1930.
MorrisonCameron A. Morrison (D-NC) 19301213Dec 13, 193019301217Dec 17, 1930No, defeated for nomination.
PartridgeFrank C. Partridge (R-VT) 19301223Dec 23, 193019300105Jan 5, 1930No, defeated for nomination.
CarawayHattie W. Caraway (D-AR) 19311113Nov 13, 193119311208Dec 8, 1931Yes, on January 12, 1932.
BarbourWilliam W. Barbour (R-NJ) 19311201Dec 1, 193119311208Dec 8, 1931Yes, on November 8, 1932.
CohenJohn S. Cohen (D-GA) 19320425Apr 25, 193219320427Apr 27, 1932Did not seek election.
WalkerWalter Walker (D-CO) 19320926Sep 26, 193219321205Dec 5, 1932No, defeated on November 8, 1932.
GrammerElijah S. Grammer (R-WA) 19321222Nov 22, 193219321205Dec 5, 1932Did not seek election.
BachmanNathan L. Bachman (D-TN) 19330304Mar 4, 193319330304Mar 4, 1933Yes, on November 6, 1934.
ByrdHarry F. Byrd (D-VA) 19330304Mar 4, 193319330304Mar 4, 1933Yes, on November 7, 1933.
EricksonJohn E. Erickson (D-MT) 19330304Mar 13, 193319330316Mar 16, 1933No, defeated for nomination.
ThompsonWilliam H. Thompson (D-NE) 19330524May 24, 193319330526May 26, 1933Did not seek election.
HatchCarl A. Hatch (D-NM) 19331010Oct 10, 193319340103Jan 3, 1934Yes, on November 6, 1934.
GibsonErnest W. Gibson (R-VT) 19331121Nov 21, 193319340103-2Jan 3, 1934Yes, on January 16, 1934.
O'MahoneyJoseph C. O'Mahoney (D-WY) 19331218Jan 1, 1934 26 19340103_3Jan 3, 1934Yes, on November 6, 1934.
ChavezDennis Chavez (D-NM) 19350511May 11, 193519350520May 20, 1935Yes, on November 3, 1936.
BensonElmer A. Benson (Farmer Laborite-MN) 19351227Dec 27, 193519360103Jan 3, 1936Did not seek election.
LongRose M. Long (D-LA) 19360131Jan 31, 193619360210Feb 10, 1936Yes, on April 21, 1936.
LoftinScott M. Loftin (D-FL) 19360526May 26, 193619360527May 27, 1936Did not seek election.
HillWilliam L. Hill (D-FL) 19360701Jul 1, 193619360701Jul 1, 1936 25 Did not seek election.
HitchcockHerbert E. Hitchcock (D-SD) 19361229Dec 29, 193619370101Jan 1, 1937No, defeated for nomination.
BerryGeorge L. Berry (D-TN) 19370506May 6, 193719370501May 10, 1937No, defeated for nomination.
GravesDixie B. Graves (D-AL) 19370820Aug 19, 193719370820Aug 20, 1937Did not seek election.
HillJ. Lister Hill (D-AL) 19380110Jan 11, 1938 24 19380111Jan 11, 1938Yes, on April 26, 1938.
MiltonJohn G. Milton (D-NJ) 19380118Jan 18, 193819380124Jan 24, 1938Did not seek election.
ReamesAlfred E. Reames (D-OR) 19380201Feb 1, 193819380211Feb 11, 1938Did not seek election.
StorkeThomas M. Storke (D-CA) 19381109Nov 9, 1938-- 23 Did not seek election.
SlatteryJames M. Slattery (D-IL) 19390414Apr 14, 193919390424Apr 24, 1939No, defeated on November 6, 1940.
ChandlerHappy Chandler (D-KY) 19391010Oct 10, 193919391010Oct 10, 1939Yes, on November 6, 1940.
ThomasJohn Thomas (R-ID) 19400127Jan 27, 194019400206Feb 6, 1940Yes, on November 6, 1940.
GibsonErnest W. Gibson, Jr. (R-VT) 19400624Jun 24, 194019400703Jul 3, 1940Did not seek election.
BallJoseph H. Ball (R-MN) 19401014Oct 14, 194019401017Oct 17, 1940Yes, on November 6, 1940, to full term beginning January 3, 1941. 22
BunkerBerkeley L. Bunker (D-NV) 19401127Nov 27, 194019401212Dec 12, 1940No, defeated for nomination.
RosierJoseph Rosier (D-WV) 19410113Jan 13, 194119410514May 14, 1941 21 No, defeated on November 17, 1942.
SpencerGeorge L. Spencer (D-AR) 19410401Apr 1, 194119410402Apr 2, 1941Did not seek election.
HoustonAndrew J. Houston (D-TX) 19410421Apr 21, 194119410602Jun 2, 1941Died on June 26, 1941.
EastlandJames O. Eastland (D-MS) 19410630Jun 30, 194119410630Jun 30, 1941Did not seek election at this time, but was elected to the Senate in 1942.
LumpkinAlva M. Lumpkin (D-SC) 19410717Jul 22, 1941 20 19410722Jul 22, 1941No, died in office on August 1, 1941.
PeaceRoger C. Peace (D-SC) 19410805Aug 5, 194119410806Aug 6, 1941Did not seek election.
MillikinEugene D. Millikin (R-CO) 19411220Dec 20, 194119420105Jan 5, 1942Yes, on November 3, 1942.
WalshArthur Walsh (D-NJ) 19431126Nov 26, 194319431202Dec 2, 1943Did not seek election.
JacksonSamuel D. Jackson (D-IN) 19440128Jan 28, 194419440131Jan 31, 1944Did not seek election.
WeeksSinclair Weeks (R-MA) 19440208Feb 8, 194419440215Feb 15, 1944Did not seek election.
CordonGuy Cordon (R-OR) 19440304Mar 4, 194419440313Mar 13, 1944Yes, on November 8, 1944.
HallWilton E. Hall (D-SC) 19441120Nov 20, 194419441127Nov 27, 1944Did not seek election.
MitchellHugh B. Mitchell (D-WA) 19450110Jan 10, 194519450118Jan 18, 1945No, defeated on November 5, 1946.
BriggsFrank P. Briggs (D-MO) 19450118Jan 18, 194519450122Jan 22, 1945No, defeated on November 5, 1946.
HartThomas C. Hart (R-CT) 19450215Feb 15, 194519450215Feb 15, 1945Did not seek election.
YoungMilton R. Young (R-ND) 19450312Mar 12, 194519450319Mar 19, 1945Yes, on June 25, 1946.
CarvilleEdward P. Carville (D-NV) 19450724Jul 24, 194519450726Jul 26, 1945No, defeated for nomination.
KnowlandWilliam F. Knowland (R-CA) 19450814Aug 26, 1945 19 19450905Sep 5, 1945Yes, on November 5, 1946.
HuffmanJames W. Huffman (D-OH) 19451008Oct 8, 194519451009Oct 9, 1945No, defeated on November 5, 1946.
GossettCharles C. Gossett (D-ID) 19451117Nov 17, 194519451129Nov 29, 1945No, defeated for nomination.
StanfillWilliam A. Stanfill (R-KY) 19451119Nov 19, 194519451123Nov 23, 1945Did not seek election.
BurchThomas G. Burch (D-VA) 19460531May 31, 194619460531May 31, 1946Did not seek election.
SwiftGeorge R. Swift (D-AL) 19460615Jun 15, 194619460620Jun 20, 1946Did not seek election.
HollandSpessard L. Holland (D-FL) 19460925Sep 25, 1946-- 18 Yes, on November 5, 1946.
FlandersRalph E. Flanders (R-VT) 19461101Nov 1, 194619470101Jan 1, 1947Yes, on November 5, 1946.
UmsteadWilliam B. Umstead (D-NC) 19461218Dec 18, 194619470101Jan 1, 1947No, defeated for nomination.
FeazelWilliam C. Feazel (D-LA) 19480518May 18, 194819480524May 24, 1948Did not seek election.
BushfieldVera C. Bushfield (R-SD) 19481006Oct 6, 1948-- 17 Did not seek election.
WithersGarrett L. Withers (D-KY) 19490120Jan 20, 194919490120Jan 20, 1949Did not seek election.
GrahamFrank P. Graham (D-NC) 19490323Mar 23, 194919490129Mar 29, 1949No, defeated for nomination.
DullesJohn F. Dulles (R-NY) 19490707Jul 7, 194919490708Jul 8, 1949No, defeated on November 8, 1949.
LeahyEdward L. Leahy (D-RI) 19490823Aug 23, 194919490824Aug 24, 1949Did not seek election.
DworshakHenry C. Dworshak (R-ID) 19491114Oct 14, 194919491115Oct 15, 1949Yes, on November 7, 1950.
DarbyHarry Darby (R-KS) 19491201Dec 1, 194919500103Jan 3, 1950Did not seek election.
BentonWilliam Benton (D-CT) 19491217Dec 17, 194919500103Jan 3, 1950Yes, on November 7, 1950.
UnderwoodThomas R. Underwood (D-KY) 19510319Mar 19, 195119510319Mar 19, 1951No, defeated on November 4, 1952.
MoodyArthur E. B. Moody (D-MI) 19510423Apr 23, 195119510425Apr 25, 1951No, defeated on November 4, 1952.
SeatonFrederick A. Seaton (R-NE) 19511210Dec 10, 195119520108Jan 8, 1952Did not seek election.
PurtellWilliam A. Purtell (R-CT) 19520829Aug 29, 195219530103Jan 3, 1953Was not a candidate in special election to fill remainer of the term to which he was appointed, but was elected to Class I seat in 1952.
KuchelThomas H. Kuchel (R-CA) 19530102Jan 2, 1953 16 19530103Jan 3, 1953Yes, on November 2, 1954.
LennonAlton A. Lennon (D-NC) 19530710Jul 10, 195319530715Jul 15, 1953No, defeated for nomination.
UptonRobert W. Upton (R-NH) 19530814Aug 14, 195319540106Jan 6, 1954No, defeated for nomination.
BurkeThomas A. Burke (D-OH) 19531113Nov 10, 1953 15 19540106Jan 6, 1954No, defeated on November 2, 1954.
BowringEva K. Bowring (R-NE) 19540416Apr 16, 195419540426Apr 26, 1954Did not seek election.
ErvinSamuel J. Ervin, Jr. (D-NC) 19540605Jun 5, 195419540611Jun 11, 1954Yes, on November 2, 1954.
CrippaEdward D. Crippa (R-WY) 19540624Jun 24, 195419540628Jun 28, 1954Did not seek election.
ReynoldsSamuel W. Reynolds (R-NE) 19540703Jul 3, 195419540707Jul 7, 1954Did not seek election.
DanielCharles E. Daniel (D-SC) 19540906Sep 6, 195419541111Nov 8, 1954Did not seek election.
BrownErnest S. Brown (R-NV) 19541101Oct 1, 195419541108Nov 8, 1954No, defeated on November 2, 1954.
LairdWilliam R. Laird III (D-WV) 19560313Mar 13, 195619560315Mar 15, 1956Did not seek election.
WoffordThomas A. Wofford (D-SC) 19560405Apr 5, 1956 14 19560409Apr 9, 1956Did not seek election.
HumphreysRobert Humphreys (D-KY) 19560621Jun 21, 195619560625Jun 25, 1956Did not seek election.
BlakleyWilliam A. Blakley (D-TX) 19570115Jan 15, 195719570117Jan 17, 1957Did not seek election.
HoblitzellJohn D. Hoblitzell, Jr. (R-WV) 19580125Jan 25, 195819580127Jan 27, 1958No, defeated on November 4, 1958.
JordanBenjamin E. Jordan (D-NC) 19580419Apr 19, 195819580505May 5, 1958Yes, on November 4, 1958.
BrunsdaleClarence Norman Brunsdale (R-ND) 19591119Nov 19, 195919591119Nov 19, 1959Did not seek election.
LuskHall S. Lusk (D-OR) 19600316Mar 16, 196019600323Mar 23, 1960Did not seek election.
LongEdward V. Long (D-MO) 19600923Sep 23, 196019610103Jan 3, 1961Yes, on November 8, 1960.
SmithBenjamin A. Smith II (D-MA) 19601227Dec 27, 196019610103Jan 3, 1961Did not seek election.
BlakleyWilliam A. Blakley (D-TX) 19610303Jan 3, 196119610303Jan 3, 1961No, defeated on May 27, 1961.
HickeyJohn J. Hickey (D-WY) 19610103Jan 3, 196119610103Jan 3, 1961No, defeated on November 6, 1962.
MurphyMaurice J. Murphy, Jr. (R-NH) 19611207Dec 7, 196119620110Jan 10, 1962No, defeated for nomination.
PearsonJames B. Pearson (R-KS) 19620131Jan 31, 196219620205Feb 5, 1962Yes, on November 6, 1962
BottumJoseph H. Bottum (R-SD) 19620709Jul 9, 196219620711Jul 11, 1962No, defeated on November 6, 1962.
JordanLen Jordan (R-ID) 19620806Aug 6, 1962-- 13 Yes, on November 6, 1962.
MechemEdwin L. Mechem (R-NM) 19621130Nov 30, 196219630101Jan 1, 1963No, defeated on November 3, 1964.
EdmondsonJames H. Edmondson (D-OK) 19630107Jan 7, 196319630109Jan 9, 1963No, defeated for nomination.
WaltersHerbert S. Walters (D-TN) 19630820Aug 20, 196319630827Aug 27, 1963Did not seek election.
SalingerPierre E. G. Salinger (D-CA) 19640804Aug 4, 196419640805Aug 5, 1964No, defeated on November 3, 1964.
MondaleWalter F. Mondale (D-MN) 19641230Dec 30, 196419650104Jan 4, 1965Yes, on November 8, 1966.
RussellDonald S. Russell (D-SC) 19650422Apr 22, 196519650423Apr 23, 1965No, defeated for nomination.
ByrdHarry F. Byrd, Jr. (D, I-VA) 19650512Nov 12, 196519650510Jan 10, 1965Yes, on November 8, 1966
GriffinRobert P. Griffin (R-MI) 19660511May 11, 196619660516May 16, 1966Yes, on November 8, 1966.
GoodellCharles E. Goodell (R-NY) 19680910Sep 10, 196819680912Sep 12, 1968No, defeated on November 3, 1970.
StevensTed Stevens (R-AK) 19681224Dec 24, 196819690103Jan 3, 1969Yes, on November 3, 1970.
SmithRalph T. Smith (R-IL) 19690917Sep 17, 196919690918Sep 18, 1969No, defeated on November 3, 1970.
GambrellDavid H. Gambrell (D-GA) 19710201Feb 1, 197119710202Feb 2, 1971No, defeated for nomination.
StaffordRobert T. Stafford (R-VT) 19710916Sep 16, 197119710917Sep 17, 1971Yes, on January 7, 1972.
EdwardsElaine S. Edwards (D-LA) 19720801Aug 1, 197219720807Aug 7, 1972Did not seek election.
MetzenbaumHoward M. Metzenbaum (D-OH) 19740104Jan 4, 1974 12 19740121Jan 21, 1974No, defeated for nomination, but was successfully elected to the Senate in 1976.
WymanLouis C. Wyman (R-NH) 19741231Dec 31, 1974--No, defeated on September 16, 1975. 11
CottonNorris H. Cotton (R-NH) 19750808Aug 8, 197519750903Sep 3, 1975Did not seek election.
AndersonWendell R. Anderson (D-MN) 19761230Dec 30, 197619770104Jan 4, 1977No, defeated on November 7, 1978.
HodgesKaneaster Hodges, Jr. (D-AR) 19771210Dec 10, 197719771215Dec 15, 1977Did not seek election.
HatfieldPaul G. Hatfield (D-MT) 19780122Jan 22, 197819780123Jan 23, 1978No, defeated for nomination.
HumphreyMuriel B. Humphrey (D-MN) 19780125Jan 25, 197819780206Feb 6, 1978Did not seek election.
AllenMaryon P. Allen (D-AL) 19780608Jun 8, 197819780612Jun 12, 1978No, defeated for nomination.
MitchellGeorge J. Mitchell (D-ME) 19800517May 17, 198019800519May 19, 1980Yes, on November 2, 1982.
BradyNicholas F. Brady (R-NJ) 19820412Apr 12, 198219820420Apr 20, 1982Did not seek election.
EvansDaniel J. Evans (R-WA) 19830908Sep 8, 198319830912Sep 12, 1983Yes, on November 8, 1983.
BroyhillJames T. Broyhill (R-NC) 19860714Jul 14, 198619860717Jul 17, 1985No, defeated on November 5, 1986.
KarnesDavid K. Karnes (R-NE) 19870311Mar 11, 198719870313Mar 13, 1987No, defeated on November 8, 1988.
CoatsDaniel R. Coats (R-IN) 19890103Jan 3, 1989 10 19890103Jan 3, 1989Yes, on November 6, 1990.
AkakaDaniel K. Akaka (D-HI) 19900516May 16, 1990 9 19900516May 16, 1990Yes, on November 6, 1990.
SeymourJohn Seymour (R-CA) 19910107Jan 7, 199119910110Jan 10, 1991No, defeated on November 3, 1992.
WoffordHarris Wofford (D-PA) 19910508May 8, 199119910509May 9, 1991Yes, on November 5, 1991.
BurdickJocelyn B. Burdick (D-ND) 19920912Sep 12, 199219920916Sep 16, 1992Did not seek election.
DorganByron L. Dorgan (D-ND) 19920912Dec 14, 1992 8 --Did not seek election.
MathewsHarlan Mathews (D-TN) 19930102Jan 2, 1993 7 19930105Jan 5, 1993Did not seek election.
KruegerRobert C. Krueger (D-TX) 19930121Jan 21, 199319930121Jan 21, 1993No, defeated on June 5, 1993.
FrahmSheila Frahm (R-KS) 19960611Jun 11, 199619960611Jun 11, 1996No, defeated for nomination.
ChafeeLincoln D. Chafee (R-RI) 19991102Nov 2, 199919991104Nov 4, 1999Yes, on November 7, 2000.
MillerZell B. Miller (D-GA) 20000724Jul 24, 200020000727Jul 27, 2000Yes, on November 7, 2000.
CarnahanJean Carnahan (D-MO) 20010103Jan 3, 2001 6 20010103Jan 3, 2001No, defeated on November 5, 2002.
BarkleyDean Barkley (IPM-MN) 20021104Nov 4, 200220021105Nov 5, 2002 5 Did not seek election.
MurkowskiLisa Murkowski (R-AK) 20021220Dec 20, 200220030107Jan 7, 2003Yes, on November 2, 2004.
MenendezRobert Menendez (D-NJ) 20070117Jan 17, 200620070118Jan 18, 2006Yes, on November 7, 2006.
BarrassoJohn Barrasso (R-WY) 20070622Jun 22, 200720070625Jun 25, 2007Yes, on November 4, 2008.
WickerRoger F. Wicker (R-MS) 20071231Dec 31, 200720071231Dec 31, 2007Yes, on November 4, 2008.
BurrisRoland Burris (D-IL) 20081231Jan 12, 2009 4 20090115Jan 15, 2009Did not seek election.
KaufmanTed Kaufman (D-DE) 20090115Jan 15, 200920090116Jan 16, 2009Did not seek election.
BennetMichael F. Bennet (D-CO) 20090121Jan 21, 200920090122Jan 22, 2009Yes, on November 2, 2010.
GillibrandKirsten E. Gillibrand (D-NY) 20090123Jan 26, 2009 3 20090127Jan 27, 2009Yes, on November 2, 2010.
LeMieuxGeorge S. LeMieux (R-FL) 20090126Sep 9, 200920090110Sep 10, 2009Did not seek election.
KirkPaul G. Kirk, Jr. (D-MA) 20090924Sep 24, 200920090925Sep 25, 2009Did not seek election.
GoodwinCarte P. Goodwin (D-WV) 20100716Jul 16, 201020100720Jul 20, 2010Did not seek election.
HellerDean Heller (R-NV) 20110503May 9, 2011 2 20110503May 9, 2011Yes, on November 6, 2012.
SchatzBrian Schatz (D-HI) 20121226Dec 26, 201220121227Dec 27, 2012Yes, on November 4, 2014.
ScottTim Scott (R-SC) 20130102Jan 2, 201320130103Jan 3, 2013Yes, on November 4, 2014.
CowanWilliam Cowan (Mo) (D-MA) 20130201Feb 1, 201320130207Feb 7, 2013Did not seek election.
ChiesaJeffrey S. Chiesa (R-NJ) 20130606Jun 6, 201320130610Jun 10, 2013Did not seek election.
WalshJohn E. Walsh (D-MT) 20140209Feb 9, 201420140211Feb 11, 2014Did not seek election.
StrangeLuther J. Strange III (R-AL) 20170209Feb 9, 201720170209Feb 9, 2017Not a candidate in the general election, having been defeated in a primary runoff election on September 26, 2017.
SmithTina Smith (D-MN) 20180103Jan 3, 2018 1 20180103Jan 3, 2018Yes, on November 6, 2018.
Hyde-SmithCindy Hyde-Smith (R-MS) 20180402Apr 2, 201820180409Apr 9, 2018Yes, in a run-off election on November 27, 2018.
KylJon L. Kyl (R-AZ) 20180904Sep 4, 201820180905Sep 5, 2018Did not seek election.
McSallyMartha McSally (R-AZ) 20190303Jan 3, 201920190303Jan 3, 2019No, defeated on November 3, 2020.
LoefflerKelly Loeffler (R-GA) 20200101Jan 1, 202020200106Jan 6, 2020No, defeated on January 5, 2021.
PadillaAlex Padilla (D-CA) 20200118Jan 18, 202120200120Jan 20, 2021Yes, on November 8, 2022.
RickettsPete Ricketts (R-NE) 20230112Jan 12, 202320230123Jan 23, 2023Yes, on November 5, 2024.
ButlerLaphonza R. Butler (D-CA) 20231001Oct 1, 202320231003Oct 3, 2023--
HelmyGeorge S. Helmy (D-NJ) 20240823Aug 23, 202420240909Sep 9, 2024--
HustedJon Husted (R-OH) 20250118Jan 18, 202520250121Jan 21, 2025--
MoodyAshley Moody (R-FL) 20250121Jan 21, 202520250121_1Jan 21, 2025--

1. Tina Smith was appointed on January 2, 2018, but did not resign her seat as lieutenant governor until 11:59 p.m. that night.

2. Dean Heller was appointed on May 3, 2011, but did not resign his House seat until May 9, 2011. He took his oath on that day.

3. Kirsten Gillibrand was appointed on Jan. 23, 2009, but did not resign her House seat until Jan. 26, 2009 (when her Senate appointment became effective); she was sworn into office Jan. 27, 2009.

4. Roland Burris's certificate of appointment was dated December 31, 2008; after initial rejection, his credentials were found to be in order on January 12, 2009; he took the oath of office on January 15, 2009.

5. Dean Barkley took the oath of office in Minnesota on November 5, 2002 and in open Senate session November 12, 2002.

6. Jean Carnahan's certificate of appointment is dated December 4, 2000, effective as of January 3, 2001, when she took her oath.

7. Harlan Matthews's certificate of appointment is dated December 29, 1992, effective upon the resignation of Al Gore, which occurred on January 2, 1992. Matthews took his oath on January 5, 1992.

8. Byron Dorgan was elected to full term of the Class 3 seat, commencing January 3, 1993; he was subsequently appointed by the governor on Dececember 14, 1992, to fill the vacancy in the term ending January 2, 1993, created by the resignation of Senator Conrad, who switched to the Class 1 seat.

9. Daniel Akaka's certificate of appointment is dated April 28, 1990, effective as of May 16, 1990, when he took his oath.

10. Daniel Coats's certificate of appointment is dated Dec. 27, 1988, effective as of January 3, 1989, when he took his oath.

11. Louis Wyman had run against John Durkin in the November 1974 general election for seat being vacated by Norris Cotton, but the election results were contested. In the meantime, Norris Cotton resigned his seat on December 31, 1974, and the governor appointed Wyman to serve the last 3 days of Cotton's term. The Senate was not in session during that time, and Wyman did not take the oath of office. The seat was then vacant from January 3, 1975, until August 8, 1975, when Cotton was appointed to fill the vacancy pending the results of a special election to be held in September between Wyman and Durkin. Durkin handily won the special election.

12. Howard Metzenbaum's certificate of appointment is dated January 3, 1974, but William B. Saxbe (who Metzenbaum replaced) did not resign until January 4.

13. Len Jordan was appointed while the Senate was not in session; in November 1962 he was elected to the full term beginning January 3, 1963; his appointment credentials were never presented on the Senate floor.

14. Thomas A. Wofford's certificate of appointment is dated March 20, 1956; appointment took effect on April 5, 1956, after Strom Thurmond resigned on April 4, 1956.

15. Thomas Burke's certificate of appointment is dated October 13, 1953; his last day as mayor was November 9, 1953; assumed his Senate duties November 10, 1953; took oath January 6, 1954.

16. Thomas Kuchel's certificate of appointment is dated December 22, 1952, but Nixon did not resign until January 1, 1953.

17. Vera C. Bushfield was appointed while the Senate was not in session. She resigned November 27, 1948, and was never sworn in.

18. Spessard Holland was appointed while the Senate was not in session; in November 1946 he was elected to the full term beginning January 3, 1947; his appointment credentials were never presented on the Senate floor.

19. William Knowland's certificate of appointment is dated August 14, 1945; he was discharged from the army on August 25, 1945, and assumed his Senate duties on August 26, 1945; he took his oath on September 5, 1945.

20. Alva Lumpkin's certificate of appointment is dated July 17, 1941. He resigned his U.S. district judgeship on July 22, 1941; took his oath on July 22, 1941.

21. Joseph Rosier was seated after a contested appointment.

22. Joseph Ball did not run in the special election for the two months remaining in the term but ran for and was elected to the full term that began in January 1943.

23. Thomas Storke was appointed after the Senate had adjourned for the year and his term expired at the end of the Congress. He did not take the oath of office.

24. J. Lister Hill's certificate of appointment is dated January 10, 1938; he resigned his House seat on January 11, 1938; took his oath on Jan. 11, 1938.

25. William Hill was appointed after the Senate had adjourned for the year. Hill took the oath in Tallahassee, FL, but was never sworn in on the Senate floor.

26. Joseph O'Mahoney's certificate of appointment is dated December 18, 1933, but he continued to serve as First Assistant Postmaster General through December 31, 1933. Senate service began on January 1, 1934; took oath January 3, 1934.

27. John Robsion's certificate of appointment is dated January 9, 1930, but he did not resign his House seat until January 10, 1930; took his oath on January 11, 1930.

28. Joseph Grundy was permitted to take his oath but his credentials were referred to the Committee on Privileges and Elections for review. The committee reported on January 31, 1930 that his appointment complied with the constitutional requirements of the Seventeenth Amendment and that the senator had a right to his seat.

29. William Crow's certificate of appointment is dated October 17, 1921. Crow resigned his Pennsylvania Senate seat on October 24, 1921, and took his oath on October 24, 1921.

30. Carter Glass's certificate of appointment is dated November 18, 1919, but he chose to remain Secretary of the Treasury until February 2, 1920, when he qualified as senator.

31. Charles McNary was elected on November 5, 1918, for the full term beginning March 4, 1919. At the same time, Frederick Mulkey was elected to the remainder of the term ending March 3, 1919. Mulkey resigned on December 17, 1918, and McNary was appointed to fill the vacancy for the remainder of the term.