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.
US Senate 2018: Democrats won 21, Republicans 10, others 2 of 33 contests →
US House 2018: Democrats won 238, Republicans 197 of 435 seats →
Governors 2018: Democrats won 16, Republicans 20 of 36 races →
Governor coverage is 2018–2024 (the precinct-data era); odd-year states (NJ/VA) and earlier cycles are pending sourcing. See the methodology for series notes.