Elections / 2010
The 2010 elections
A midterm cycle: 36 US Senate contests on record. Presidential pages cover the quadrennial years on either side.
2010 US Senate elections
2010Senate margin
D+60R+60
States with a Senate contest in 2010, 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 2010: Democrats won 12, Republicans 23, others 1 of 36 contests →
US House 2010: Democrats won 197, Republicans 238 of 435 seats →
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.