Results -- Republican holds in light red, pickups in dark red, Democratic holds in light blue, pickups in dark blue The U.S. Senate election, 1998 was a roughly even contest between the Republican and Democratic parties. On the one hand, the Republican party slightly lost popularity after the impeachment of President Clinton; on the other, the Democrats had more seats to defend since this was six years after a Democratic wave in the 1992 election. In the end the balance of the Senate was unchanged. The Republicans took open seats in Kentucky and Ohio from the Democrats as well as unseating Carol Moseley-Braun (D-IL). Democrat Evan Bayh took the open seat in Indiana, and incumbent Senators Lauch Faircloth (R-N.C.) and Al D'Amato (R-NY) lost their seats to John Edwards and Chuck Schumer.
Senate contests in 1998
| State | Incumbent | Party | Status | Opposing Candidates | | Alabama | Richard C. Shelby | Republican | Re-elected, 63 - 37 | Clayton Suddith (Democrat) | | Alaska | Frank H. Murkowski | Republican | Re-elected, 75 - 20 | Joe Sonneman (Democrat) | | Arizona | John S. McCain III | Republican | Re-elected, 68 - 28 | Ed Ranger (Democrat) | | Arkansas | Dale L. Bumpers | Democrat | Retired: Democratic victory, 55 - 42 | Blanche L. Lincoln (Democrat) Fay Boozman (Republican) | | California | Barbara L. Boxer | Democrat | Re-elected, 53 - 43 | Matt Fong (Republican) | | Colorado | Ben Nighthorse Campbell | Republican | Re-elected, 63 - 35 | Dottie Lamm (Democrat) | | Connecticut | Christopher J. Dodd | Democrat | Re-elected, 65 - 32 | Gary Franks (Republican) | | Florida | D. Robert Graham | Democrat | Re-elected, 63 - 37 | Charlie Crist (Republican) | | Georgia | Paul D. Coverdell | Republican | Re-elected, 52 - 45 | Michael Coles (Democrat) | | Hawaii | Daniel K. Inouye | Democrat | Re-elected, 79 - 18 | Crystal Young (Republican) | | Idaho | Dirk A. Kempthorne | Republican | Retired: Republican victory, 70 - 28 | Michael D. Crapo (Republican) Bill Mauk (Democrat) | | Illinois | Carol Moseley-Braun | Democrat | Defeated, 51 - 47 | Peter G. Fitzgerald (Republican) | | Indiana | Daniel R. Coats | Republican | Retired: Democratic victory, 64 - 35 | B. Evans "Evan" Bayh III (Democrat) Paul Helmke (Republican) | | Iowa | Charles E. Grassley | Republican | Re-elected, 68 - 31 | David Osterberg (Democrat) | | Kansas | Samuel D. Brownback | Republican | Re-elected, 65 - 32 | Paul Feleciano Jr. (Democrat) | | Kentucky | Wendell H. Ford | Democrat | Retired: Republican victory, 50 - 49 | James P. Bunning (Republican) Scotty Baesler (Democrat) | | Louisiana | John B. Breaux | Democrat | Re-elected, 64 - 32 | Jim Donelon (Republican) | | Maryland | Barbara A. Mikulski | Democrat | Re-elected, 71 - 29 | Ross Pierpont (Republican) | | Missouri | Christopher S. "Kit" Bond | Republican | Re-elected, 53 - 44 | Jay Nixon (Democrat) | | Nevada | Harry M. Reid | Democrat | Re-elected, 48 - 48 | John E. Ensign (Republican) | | New Hampshire | Judd A. Gregg | Republican | Re-elected, 68 - 28 | George Condodemetraky (Democrat) | | New York | Alfonse M. D'Amato | Republican | Defeated, 54 - 45 | Charles E. Schumer (Democrat) | | North Carolina | D. McLaughlin "Lauch" Faircloth | Republican | Defeated, 51 - 47 | John Edwards (Democrat) | | North Dakota | Byron L. Dorgan | Democrat | Re-elected, 63 - 35 | Donna Nalewaja (Republican) | | Ohio | John H. Glenn Jr. | Democrat | Retired: Republican victory, 56 - 44 | George V. Voinovich (Republican) Mary O. Boyle (Democrat) | | Oklahoma | Donald L. Nickles | Republican | Re-elected, 66 - 31 | Don Carroll (Democrat) | | Oregon | Ronald L. Wyden | Democrat | Re-elected, 59 - 36 | John Lim (Republican) | | Pennsylvania | Arlen Specter | Republican | Re-elected, 61 - 35 | Bill Lloyd (Democrat) | | South Carolina | Ernest F. "Fritz" Hollings | Democrat | Re-elected, 53 - 46 | Bob Inglis (Republican) | | South Dakota | Thomas A. Daschle | Democrat | Re-elected, 62 - 36 | Ron Schmidt (Republican) | | Utah | Robert F. Bennett | Republican | Re-elected, 64 - 33 | Scott Leckman (Democrat) | | Vermont | Patrick J. Leahy | Democrat | Re-elected, 72 - 23 | Fred Tuttle (Republican) | | Washington | Patricia Murray | Democrat | Re-elected, 58 - 42 | Linda Smith (Republican) | | Wisconsin | Russell D. Feingold | Democrat | Re-elected, 51 - 49 | Mark Neumann (Republican) | See also - U.S. Senate election, 1996
- U.S. Senate election, 2000
- U.S. House election, 1998
Senate composition before and after elections
| U.S. Senate elections | | 1920 | 1922 | 1924 | 1926 | 1928 | 1930 | 1932 | 1934 | 1936 | 1938 | 1940 | 1942 | 1944 | 1946 | 1948 | 1950 | 1952 | 1954 | 1956 | 1958 | 1960 | 1962 | 1964 | 1966 | 1968 | 1970 | 1972 | 1974 | 1976 | 1978 | 1980 | 1982 | 1984 | 1986 | 1988 | 1990 | 1992 | 1994 | 1996 | 1998 | 2000 | 2002 | 2004 | 2006 | 2008 | 2010 | |