Elections by year
2010 elections
Every election in 2010 in the 99chambers archive: generals, primaries, specials and runoffs for Congress, governor, statewide offices and the state legislatures.
Races6,029
Changed party712
Unopposed27%1,648 races
Incumbents defeated469
- Jan 19, 2010 special
- May 18, 2010 special
- Nov 1, 2010 special
- Nov 2, 2010 general
- 2010 general
- Dec 1, 2010 special
Jan 19, 2010 special
1 races in 1 state: U.S. Senate
May 18, 2010 special
1 races in 1 state: U.S. HouseD 1
Nov 1, 2010 special
2 races in 1 state: State legislatures
Nov 2, 2010 general
1 races in 1 state: State legislatures
2010 general
6,023 races in 50 states: U.S. Senate, Governors, U.S. House, State legislaturesD 193 · R 242
Dec 1, 2010 special
1 races in 1 state: State legislatures
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse); English Wikipedia; Federal Election Commission; Harvard Dataverse / Carl Klarner