By now, you’ve probably seen the ads.  “Think you know Mitt?” a narrator asks. "Think again." It rips Mitt Romney as the father of government-run health care and uses old footage of him declaring, "I’m someone who is moderate and my views are progressive." Appearing days before Florida’s Republican presidential primary on Tuesday, the spot was created to benefit Newt Gingrich. Only Gingrich had nothing to do with it, let alone the millions to put it on air. It’s the latest salvo from a "super PAC," the political action committees that are dramatically reshaping campaigns and providing an outsized role for the wealthy, corporations and unions to influence the outcome.

Another super PAC ads is below.