Elections / 1998
The 1998 elections
A midterm cycle: 34 US Senate contests on record. Presidential pages cover the quadrennial years on either side.
1998 US Senate elections
1998Senate margin
D+60R+60
States with a Senate contest in 1998, each filled by its result. States without a seat up this cycle are faint.
Blue and red show the Democratic-vs-Republican margin; gold marks a seat an independent won.
All 34 results, 1998
| State | Senate margin |
|---|---|
| Hawaii | D+61.4 |
| Vermont | D+49.9 |
| Maryland | D+41.0 |
| Connecticut | D+32.8 |
| Louisiana | D+32.6 |
| Indiana | D+28.9 |
| North Dakota | D+28.0 |
| Oregon | D+27.3 |
| South Dakota | D+25.7 |
| Florida | D+24.9 |
| Washington | D+16.8 |
| New York | D+15.1 |
| Arkansas | D+12.8 |
| California | D+10.0 |
| South Carolina | D+7.0 |
| North Carolina | D+4.1 |
| Wisconsin | D+2.1 |
| Nevada | D+0.1 |
| Kentucky | R+0.6 |
| Illinois | R+2.9 |
| Georgia | R+7.2 |
| Missouri | R+8.9 |
| Ohio | R+12.9 |
| Pennsylvania | R+26.6 |
| Alabama | R+26.6 |
| Colorado | R+27.5 |
| Utah | R+31.0 |
| Kansas | R+33.7 |
| Oklahoma | R+35.1 |
| Iowa | R+37.9 |
| New Hampshire | R+39.6 |
| Idaho | R+41.1 |
| Arizona | R+41.6 |
| Alaska | R+54.9 |
The 1998 cycle at a glance
US Senate
45–55
Republicans held
US House
211–223
Republicans held
Governors
D 11 · R 23 · O 2
36 races
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Governor pages cover 2018–2025: even-year cycles with county-level precinct detail, the odd-year VA/NJ and KY/LA/MS races as certified statewide results. See the methodology for series notes.