According to Carville, who has a forthcoming book called “It’s the Middle Class, Stupid,” Romney’s reluctance to talk openly about that is keeping him from dominating the campaign against President Barack Obama.

“One of the problems that Romney has honestly is — the thing against him the most is his religion,” Carville said. “And he doesn’t understand the reasons. He doesn’t talk about that. He was a bishop in his church. And he doesn’t talk about the one public office that he held much and that was being the governor of Massachusetts. So, he talks about Bain, but that’s become sort of a big issue in the campaign. He’s got to, you know — if you look at the numbers, Romney should win this campaign.”