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1998 U.S. Senate election results

Results of all 34 Senate races in 1998 (seats won: Democratic 18, Republican 16); 6 changed party. Winners, margins and every candidate.

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  • Democratic 18
  • Republican 16
Alabama: Richard C. Shelby REP +26.6Alaska: Frank Murkowski REP +54.8Arizona: John McCain REP +41.6Arkansas: Blanche Lincoln DEM +12.8California: Barbara Boxer DEM +10.1Colorado: Ben Nighthorse Campbell REP +27.5Connecticut: Christopher J. Dodd DEM +32.8DelawareDistrict of ColumbiaFlorida: Bob Graham DEM +24.9Georgia: Paul Coverdell REP +7.2Hawaii: Daniel K. Inouye DEM +61.4Idaho: Mike Crapo REP +41.1Illinois: Peter G. Fitzgerald REP +2.9 gainIndiana: Evan Bayh DEM +28.9 gainIowa: Chuck Grassley REP +37.9Kansas: Sam Brownback REP +33.7Kentucky: Jim Bunning REP +0.6 gainLouisiana: John B. Breaux DEM +32.4MaineMaryland: Barbara A. Mikulski DEM +41.0MassachusettsMichiganMinnesotaMississippiMissouri: Christopher S. Bond REP +8.9MontanaNebraskaNevada: Harry Reid DEM +0.1New Hampshire: Judd Gregg REP +39.6New JerseyNew MexicoNew York: Charles E. Schumer DEM +14.2 gainNorth Carolina: John Edwards DEM +4.1 gainNorth Dakota: Byron L. Dorgan DEM +28.0Ohio: George V. Voinovich REP +12.9 gainOklahoma: Don Nickles REP +35.1Oregon: Ron Wyden DEM +27.3Pennsylvania: Arlen Specter REP +26.6Rhode IslandSouth Carolina: Ernest F. Hollings DEM +7.0South Dakota: Tom Daschle DEM +25.7TennesseeTexasUtah: Robert F. Bennett REP +31.0Vermont: Patrick J. Leahy DEM +49.8VirginiaWashington: Patty Murray DEM +16.8West VirginiaWisconsin: Russ Feingold DEM +2.2WyomingVermont: Patrick J. Leahy DEM +49.8New Hampshire: Judd Gregg REP +39.6MassachusettsRhode IslandConnecticut: Christopher J. Dodd DEM +32.8New JerseyDelawareMaryland: Barbara A. Mikulski DEM +41.0District of Columbia
States with a race in 1998, coloured by the winning party and shaded by margin. Grey: no race.

Seats that changed party

All races

StateSeatWinnerPartyMarginBefore
Alabama Class III Richard C. Shelby Republican 26.6 Republican
Alaska Class III Frank Murkowski Republican 54.8 Republican
Arizona Class III John McCain Republican 41.6 Republican
Arkansas Class III Blanche Lincoln Democratic 12.8 Democratic
California Class III Barbara Boxer Democratic 10.1 Democratic
Colorado Class III Ben Nighthorse Campbell Republican 27.5 Republican
Connecticut Class III Christopher J. Dodd Democratic 32.8 Democratic
Florida Class III Bob Graham Democratic 24.9 Democratic
Georgia Class III Paul Coverdell Republican 7.2 Republican
Hawaii Class III Daniel K. Inouye Democratic 61.4 Democratic
Idaho Class III Mike Crapo Republican 41.1 Republican
Illinois Class III Peter G. Fitzgerald Republican 2.9 Democratic flip
Indiana Class III Evan Bayh Democratic 28.9 Republican flip
Iowa Class III Chuck Grassley Republican 37.9 Republican
Kansas Class III Sam Brownback Republican 33.7 Republican
Kentucky Class III Jim Bunning Republican 0.6 Democratic flip
Louisiana Class III John B. Breaux Democratic 32.4 Democratic
Maryland Class III Barbara A. Mikulski Democratic 41.0 Democratic
Missouri Class III Christopher S. Bond Republican 8.9 Republican
Nevada Class III Harry Reid Democratic 0.1 Democratic
New Hampshire Class III Judd Gregg Republican 39.6 Republican
New York Class III Charles E. Schumer Democratic 14.2 Republican flip
North Carolina Class III John Edwards Democratic 4.1 Republican flip
North Dakota Class III Byron L. Dorgan Democratic 28.0 Democratic
Ohio Class III George V. Voinovich Republican 12.9 Democratic flip
Oklahoma Class III Don Nickles Republican 35.1 Republican
Oregon Class III Ron Wyden Democratic 27.3 Democratic
Pennsylvania Class III Arlen Specter Republican 26.6 Republican
South Carolina Class III Ernest F. Hollings Democratic 7.0 Democratic
South Dakota Class III Tom Daschle Democratic 25.7 Democratic
Utah Class III Robert F. Bennett Republican 31.0 Republican
Vermont Class III Patrick J. Leahy Democratic 49.8 Democratic
Washington Class III Patty Murray Democratic 16.8 Democratic
Wisconsin Class III Russ Feingold Democratic 2.2 Democratic

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