Senate Energy and Natural Resources Committee member Sen. Bob Corker, R-Tenn. listens on Capitol Hill in Washington, Wednesday, June 17, 2009, during the committee's markup hearing on energy legislation. AP Photo logo AP Photo 4 months ago

Senate Energy and Natural Resources Committee member Sen. Bob Corker, R-Tenn. listens on Capitol Hill in Washington, Wednesday, June 17, 2009, during the committee's markup hearing on energy legislation.