MoveOn.org has produced a TV ad to run against some senators who they claim want to “roll back” the Clean Air Act. As with the IPCC and the CRU, MoveOn.org can’t make their case for the environment without lying about it:

The Moveon ad is a triple whopper, piling falsehood upon falsehood upon falsehood. No American smokes the equivalent of a pack a day just by breathing. The senators are not working to “roll back” the Clean Air Act. The policy they support — one that Moveon opposes — would not slow any federal or state efforts to clean the air.