Molly Ball's evidence that it is:
Richard Land, president of the Ethics and Religious Liberty Commission of the Southern Baptist Convention, said the GOP candidates' tough talk on illegal immigration, as well as their anti-government fervor, are alienating Christian voters. And it doesn't help that doubts have arisen about the personal morals of a candidate many social conservatives embraced — Herman Cain, who is a Southern Baptist preacher in addition to being a former businessman. … [There's a] possibility that religious voters, seeing no clear champion, could instead retreat from politics anew. That is, they might be so turned off that they stay home in 2012.
The Dish 