For Newt Gingrich, the most devastating attack ad against his campaign is self-inflicted: a 2006 PSA for climate change that he cut with then-Speaker Nancy Pelosi. At the time Republicans from President Bush on down were moving to the center on the issue, but in recent years the GOP has purged virtually all pro-environment sentiment among its members. Now Gingrich is trying to catch up with the times by disavowing his old ad.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=109113