The 2006 United States midterm elections were held on Tuesday, November 7, 2006. All United States House of Representatives seats and one third of the United States Senate seats were contested in this election, as well as 36 state governorships, many state legislatures, four territorial legislatures and many state and local races. The election resulted in a sweeping victory for the Democratic Party which captured the House of Representatives, the Senate, and a majority of governorships and state legislatures from the Republican Party.

The Democratic Party won a majority of the state governorships^[3] and the U.S. House and Senate seats each for the first time since 1994, an election-year commonly known as the "Republican Revolution." For the first time in the history of the United States, no Republican captured any House, Senate, or Gubernatorial seat previously held by a Democrat.^[4]