The 2008 congressional elections in Colorado were held on November 4, 2008 to determine who will represent the state of Colorado in the United States House of Representatives, coinciding with the presidential and senatorial elections. Representatives are elected for two-year terms; those elected served in the 111th Congress from January 3, 2009 until January 3, 2011. Colorado had seven seats in the House, apportioned according to the 2000 United States Census. Its 2007-2008 congressional delegation consisted of four Democrats and three Republicans. After the elections, it consisted of five Democrats and two Republicans. District 4 changed party (from Republican to Democratic), which was the only district CQ Politics had forecasted to be at some risk for the incumbent party. The Primary election was held August 12, 2008. Overview Match-up summary District breakdown District 1 Democratic incumbent Diana DeGette won against Republican nominee George Lilly. DeGette was unopposed in her primary, and Lilly won against Charles Crain in his primary. CQ Politics forecasted the race as 'Safe Democrat'. District 2 Democratic nominee Jared Polis, a businessman, won against Republican nominee Scott Starin, an aerospace engineer. CQ Politics forecasted the race as 'Safe Democrat'. This district had been represented by Democrat Mark Udall since 1999. With the retirement of Senator Wayne Allard, Udall ran for the Senate, leaving this an open seat. Polis won the Democratic primary against Senate President Joan Fitz-Gerald and Colorado Conservation Trust Director Will Shafroth. Starin was unopposed in the Republican primary. Former Eagle County Commissioner Tom Stone was earlier considered a possible Republican candidate, as was Boulder Mayor Mark Ruzzin for the Green Party. Democrats held a strong edge in this district, with the most recent Democratic presidential candidate, John Kerry, having won 59% in 2004, as it was centered around heavily Democratic Boulder. District 3 Democratic incumbent John Salazar won against Republican nominee Wayne Wolf. CQ Politics forecasted the race as 'Safe Democrat'. District 4 Democratic nominee Betsy Markey, businesswoman and regional director for Senator Ken Salazar won against Republican incumbent Marilyn Musgrave), who had represented this district since 2003. Both ran unopposed in the party primary elections. CQ Politics forecasted the race as 'Leans Democratic'. The Rothenberg Political Report rated it 'Toss-Up/Tilt Democratic'. The Cook Political Report ranked it 'Republican Toss Up'. Musgrave, a conservative known for her staunch opposition to gay marriage, won in 2006 by winning a plurality (46%) of the vote against