Elections were held in Colorado on Tuesday, November 2, 2010. Primary elections were held on August 10, 2010. Federal United States Senate Incumbent Senator and Democratic nominee Michael Bennet defeated Republican nominee Ken Buck in the General election. United States House All seven Colorado seats in the United States House of Representatives were up for election in 2010. State Governor and Lieutenant Governor State Senate One-half of the seats of the Colorado Senate were up for election in 2010. State House of Representatives All of the seats in the Colorado House of Representatives were up for election in 2010. Judicial elections Multiple judicial positions were up for election in 2010. Colorado judicial elections, 2010 at Ballotpedia Ballot measures Seven measures were certified for the 2010 ballot. Colorado 2010 ballot measures at Ballotpedia Local Many elections for county offices were also held on November 2, 2010. References External links Elections Division of the Colorado Secretary of State Official candidate list (general) Candidates for Colorado State Offices at Project Vote Smart Colorado Smart Voter from the League of Women Voters Colorado at Ballotpedia Colorado Election Guide at Congress.org Colorado at OurCampaigns.com Colorado Polls at Pollster.com Finance 2010 House and Senate Campaign Finance for Colorado at the Federal Election Commission Colorado Congressional Races in 2010 campaign finance data from OpenSecrets Colorado 2010 campaign finance data from Follow the Money Media Election 2010 at The Denver Post Colorado