Advocates from the environmental, veteran and trade union communities have launched an advertising campaign criticizing lawmakers who opposed the American Clean Energy & Security Act last week in the House Energy and Commerce Committee. A strange bedfellows coalition, the League of Conservation Voters, VoteVets.org and America's Building Trades Unions, have joined forces to support the clean energy bill.

The coalition is behind TV ads targeting Reps. John Barrow, D-Ga., Roy Blunt, R-Mo., and Mike Ross, D-Ark., for voting against the green legislation. View one of the ads here.

"We are focusing a lot of resources around getting a [comprehensive clean energy] bill to the president's desk to be signed," said Navin Nayak, director of the global warming program at the League of Conservation Voters. "There is still a lot of opposition to this bill, but what's encouraging is a huge amount of support from a more diverse set of interests than ever before."