The 2010 United States Senate election in Colorado took place on November 2, 2010, alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. In December 2008, President-elect Barack Obama nominated incumbent U.S. Senator Ken Salazar as Secretary of the Interior.[1] After Salazar resigned from his seat,[2] Democratic governor Bill Ritter appointed Denver Public Schools Superintendent Michael Bennet to fill the seat.
Bennet won a full term, defeating former state House speaker Andrew Romanoff in the Democratic primary, and Republican nominee Ken Buck in the general election.[3][4] With a margin of 1.7%, this election was the second closest race of the 2010 Senate election cycle after the concurrent one in Illinois.
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^Osher, Christopher N.; Bunch, Joey (December 15, 2008). "Salazar poised to head Interior". Denver Post. Retrieved December 15, 2008.
^"Ken Salazar Resigns From Senate". Associated Press. January 19, 2009. Archived from the original on January 22, 2009. Retrieved January 20, 2009.
^Crummy, Karen (January 2, 2009). "Michael Bennet chosen as next Senator". Denver Post. Retrieved January 2, 2009.
^Johnson, Kirk. "Michael Bennet News". The New York Times.
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