Elections / 2018
The 2018 elections
A midterm cycle: 33 US Senate contests on record. Presidential pages cover the quadrennial years on either side.
2018 US Senate elections
2018Senate margin
D+60R+60
States with a Senate contest in 2018, each filled by its result. States without a seat up this cycle are faint.
Gold marks a state an independent or third-party candidate carried — the blue/red ramp is the Democratic-vs-Republican margin only where a major party won.
Blue and red show the Democratic-vs-Republican margin; gold marks a seat an independent won.
All 33 results, 2018
| State | Senate margin |
|---|---|
| California | D+100.0 |
| Hawaii | D+42.3 |
| Maryland | D+34.6 |
| New York | D+33.4 |
| Massachusetts | D+24.2 |
| Minnesota | D+24.1 |
| New Mexico | D+23.6 |
| Rhode Island | D+23.2 |
| Delaware | D+22.1 |
| Connecticut | D+17.4 |
| Washington | D+16.9 |
| Virginia | D+16.0 |
| Pennsylvania | D+12.9 |
| New Jersey | D+11.2 |
| Wisconsin | D+10.8 |
| Ohio | D+6.8 |
| Michigan | D+6.5 |
| Nevada | D+5.0 |
| Montana | D+3.6 |
| West Virginia | D+3.2 |
| Arizona | D+2.3 |
| Florida | R+0.1 |
| Texas | R+2.6 |
| Missouri | R+5.8 |
| Indiana | R+5.9 |
| Tennessee | R+10.8 |
| North Dakota | R+10.9 |
| Mississippi | R+19.0 |
| Nebraska | R+19.1 |
| Maine | O+19.1 |
| Vermont | O+45.2 |
| Utah | R+31.7 |
| Wyoming | R+36.9 |
The 2018 cycle at a glance
US Senate
45–53–2
Republicans held
US House
235–199
Democrats flipped
Governors
D 16 · R 20
36 races
Go deeper by office
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.