I don’t believe the Perry campaign is behind this but why attack them? Herman Cain’s behaviour is at issue here. Not Perry’s or Rommney’s or Rove’s.
http://amerpundit.com/2011/11/02/cain-perry-camp-behind-leaked-story/
Perry spokesman Ray Sullivan said it was patently untrue that the Perry campaign had any role in placing the sexual harassment story with Politico.