The2006 United States Senate election in Wyoming was held November 7, 2006. The primaries were on August 22, 2006, in which both incumbent Republican Craig Thomas and his Democratic challenger were unopposed. Thomas won re-election to a third term, but died of leukemia on June 4, 2007; fellow Republican John Barrasso was subsequently appointed and has held the seat since.
Thomas was a very popular two term incumbent, having a 68% approval rating.[3] Despite doing very well in the polls, Thomas agreed to a debate. An October debate was sponsored by theCasper Star-Tribune andKCWY in Casper. Thomas said the nation has made progress in itsenergy policy, while Groutage said the nation's energy policy has failed because Congress has done more forspecial interests than the people.[4]