He opposed gay adoption for a number of years, although by 2004 he had reversed his position. Salazar fell behind to candidate Mike Miles early in the state's caucus process. The national Democratic Party backed Salazar with contributions from the DSCC, and Salazar came back to defeat Miles in the Democratic primary, going on to defeat beer executive Pete Coors of the Coors Brewing Company and win the general election for the Senate seat. He assumed office on January 4, 2005. Salazar was a leading member of a bipartisan group of Senators that developed the Comprehensive Immigration Reform Act of 2007, which would have provided a path to citizenship for undocumented immigrants and increased funding for border security, though the bill ultimately failed in the Senate. During negotiations, Salazar was quoted by The New York Times saying he wanted the new point system to be equitable: "We do not want to create a system that is just for the wealthiest and most educated immigrants." On May 23, 2005, Salazar was among the Gang of 14 moderate senators to forge a compromise on the Democrats' use of the filibuster against judicial appointments, thus blocking the Republican leadership's attempt to implement the so-called "nuclear option". Under the agreement, the Democrats would retain the power to filibuster a Bush judicial nominee only in an "extraordinary circumstance", and the three most conservative Bush appellate court nominees (Janice Rogers Brown, Priscilla Owen and William Pryor) would receive a vote by the full Senate. Salazar has skirmished with Focus on the Family, a Colorado-based conservative Christian group of national stature, over his stance on judicial nominees. In 2005, Salazar voted against increasing fuel-efficiency standards (CAFE) for cars and trucks, a vote that the League of Conservation Voters believes is anti-environment. In the same year, Salazar voted against an amendment to repeal tax breaks for ExxonMobil and other major petroleum companies. In August 2006, Ken Salazar supported fellow Democratic Senator Joe Lieberman in his primary race against Ned Lamont in Connecticut. Lamont, running primarily as an anti-war candidate, won the primary. Salazar's continued support of Lieberman, who successfully ran as an independent against Lamont, has rankled the anti-war wing of the Democratic Party. In 2006, Salazar voted to end protections that limit offshore oil drilling in Florida's Gulf Coast. Salazar introduced legislation, co-sponsored by Colorado Reps. John Salazar and Mark Udall to limit natural gas drilling on