The Real Clear Politics average has only a one point difference between Santorum and Gingrich in SC. A lot of Evangelicals for Rick, and Newt is Catholic.
Depending on what happens, it might be better for Newt to pull out and endorse Santorum before Florida. I think Santorum would do better overall in the South.
But he has very little chance in the general.
The Insider Advantage and PPP polls from today indicate it’s a two-man race between Gingrich and Romney.