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1988 U.S. Senate election results

Results of all 33 Senate races in 1988 (seats won: Democratic 19, Republican 14); 7 changed party. Winners, margins and every candidate.

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  • Democratic 19
  • Republican 14
AlabamaAlaskaArizona: Dennis Webster DeConcini DEM +15.7ArkansasCalifornia: Pete Wilson REP +8.8ColoradoConnecticut: Joseph I. Lieberman DEM +0.7 gainDelaware: William V. Roth Jr. REP +24.1District of ColumbiaFlorida: Connie Mack REP +0.9 gainGeorgiaHawaii: Spark Masayuki Matsunaga DEM +55.9IdahoIllinoisIndiana: Richard G. Lugar REP +36.3IowaKansasKentuckyLouisianaMaine: George J. Mitchell DEM +62.6Maryland: Paul S. Sarbanes DEM +23.6Massachusetts: Edward M. Kennedy DEM +31.0Michigan: Donald Wayne Riegle DEM +21.9Minnesota: David Ferdinand Durenberger REP +15.3Mississippi: Trent Lott REP +7.8 gainMissouri: John Claggett Danforth REP +36.0Montana: Conrad Burns REP +3.7 gainNebraska: Bob Kerrey DEM +15.0 gainNevada: Richard H. Bryan DEM +4.2 gainNew HampshireNew Jersey: Frank R. Lautenberg DEM +8.4New Mexico: Jeff Bingaman DEM +26.6New York: Daniel Patrick Moynihan DEM +36.8North CarolinaNorth Dakota: Quentin Northrup Burdick DEM +20.4Ohio: Howard Morton Metzenbaum DEM +14.0OklahomaOregonPennsylvania: Henry John Heinz REP +34.0Rhode Island: John Lester Hubbard Chafee REP +9.2South CarolinaSouth DakotaTennessee: Jim Sasser DEM +30.6Texas: Lloyd Bentsen DEM +19.2Utah: Orrin G. Hatch REP +35.5Vermont: James M. Jeffords REP +38.2Virginia: Charles S. Robb DEM +42.6 gainWashington: Slade Gorton REP +2.2West Virginia: Robert C. Byrd DEM +29.5Wisconsin: Herb Kohl DEM +4.5Wyoming: Malcolm Wallop REP +0.7Vermont: James M. Jeffords REP +38.2New HampshireMassachusetts: Edward M. Kennedy DEM +31.0Rhode Island: John Lester Hubbard Chafee REP +9.2Connecticut: Joseph I. Lieberman DEM +0.7 gainNew Jersey: Frank R. Lautenberg DEM +8.4Delaware: William V. Roth Jr. REP +24.1Maryland: Paul S. Sarbanes DEM +23.6District of Columbia
States with a race in 1988, coloured by the winning party and shaded by margin. Grey: no race.

Seats that changed party

All races

StateSeatWinnerPartyMarginBefore
Arizona Class I Dennis Webster DeConcini Democratic 15.7 Democratic
California Class I Pete Wilson Republican 8.8 Republican
Connecticut Class I Joseph I. Lieberman Democratic 0.7 Republican flip
Delaware Class I William V. Roth Jr. Republican 24.1 Republican
Florida Class I Connie Mack Republican 0.9 Democratic flip
Hawaii Class I Spark Masayuki Matsunaga Democratic 55.9 Democratic
Indiana Class I Richard G. Lugar Republican 36.3 Republican
Maine Class I George J. Mitchell Democratic 62.6 Democratic
Maryland Class I Paul S. Sarbanes Democratic 23.6 Democratic
Massachusetts Class I Edward M. Kennedy Democratic 31.0 Democratic
Michigan Class I Donald Wayne Riegle Democratic 21.9 Democratic
Minnesota Class I David Ferdinand Durenberger Republican 15.3 Republican
Mississippi Class I Trent Lott Republican 7.8 Democratic flip
Missouri Class I John Claggett Danforth Republican 36.0 Republican
Montana Class I Conrad Burns Republican 3.7 Democratic flip
Nebraska Class I Bob Kerrey Democratic 15.0 Republican flip
Nevada Class I Richard H. Bryan Democratic 4.2 Republican flip
New Jersey Class I Frank R. Lautenberg Democratic 8.4 Democratic
New Mexico Class I Jeff Bingaman Democratic 26.6 Democratic
New York Class I Daniel Patrick Moynihan Democratic 36.8 Democratic
North Dakota Class I Quentin Northrup Burdick Democratic 20.4 Democratic
Ohio Class I Howard Morton Metzenbaum Democratic 14.0 Democratic
Pennsylvania Class I Henry John Heinz Republican 34.0 Republican
Rhode Island Class I John Lester Hubbard Chafee Republican 9.2 Republican
Tennessee Class I Jim Sasser Democratic 30.6 Democratic
Texas Class I Lloyd Bentsen Democratic 19.2 Democratic
Utah Class I Orrin G. Hatch Republican 35.5 Republican
Vermont Class I James M. Jeffords Republican 38.2 Republican
Virginia Class I Charles S. Robb Democratic 42.6 Republican flip
Washington Class I Slade Gorton Republican 2.2 Republican
West Virginia Class I Robert C. Byrd Democratic 29.5 Democratic
Wisconsin Class I Herb Kohl Democratic 4.5 Democratic
Wyoming Class I Malcolm Wallop Republican 0.7 Republican

Source: FiveThirtyEight election-results; each race page links the official source it was compiled from.