Elections for the United States Senate will be held on November 7, 2006, with 33 of the 100 seats in the United States Senate being contested. Senators are elected for six-year terms, and the term of office for those elected in 2006 will be from January 3, 2007 until January 3, 2013. Those Senators who were elected in 2000 (known as "Class 1") will be seeking reelection or retiring in 2006.

The 2006 House election is scheduled for the same date as the Senate election, as well as many state and local elections, including those for 36 state governors.
http://en.wikipedia.org/wiki/U.S._Senate_election,_2006

United States House elections, 2006
http://en.wikipedia.org/wiki/U.S._House ... ns%2C_2006
Elections for the United States House of Representatives will be held on November 7, 2006, with all of the 435 seats in the House up for election. Since Representatives are elected for two-year terms, those elected will serve in the 110th United States Congress from January 3, 2007 until January 3, 2009.

The 2006 Senate election is scheduled for the same date as the House election, as well as many state and local elections, including those for 36 state governors.