Read: Racists support Santorum.

Via RCP:

Politico’s Evan Thomas (previously at Newsweek): “It’s interesting that Perry stayed in because there is still this angry, white, middle class male out there that is a seething force, and Romney is not really their guy. It’s not clear who is, I’m not sure, I mean, Santorum for the moment, but in some ways, that is a force to be tapped, and nobody’s really found a way to do it.”