And
here's the crosstabs on the exit polling.
Not much that isn't common sense or that we haven't seen before. Rich, educated Republicans went for Romney, young people went for Paul, the blue-collar sixpackers and Tea Partiers went for Gingrich. Santorum was second fiddle to Newt even among his own natural base: born-again Evangelicals who care about religion and want to ban abortion. The only ares where Rick outperformed was for people whom abortion is the single strongest issue (only 8% of the total) and/or people whose single most important candidate quality was a strong moral character (18% of total). It should noted that even 6% of those folks voted Gingrich.
A majority of voters seemed to indicate that the debates were important to their decision, and of those, Gingrich took the lion's share. So since he "won" the debates by attacking everyone who dared question him, and playing the victim card hard....yeah, you know what to expect from here on out.
Geographically, Romney's winning the urban areas. Problem being, this is South Carolina. There's basically two cities -- Columbia and Charleston. Everything in between is lightly populated rural area or small cities at best (<50,000 population). And Gingrich is absolutely cleaning up there.
@Glowcat: Gingrich is from Georgia, not South Carolina. It's right next-door, but it is a distinction.
EDIT: I'll just add that Ron Paul does indeed look headed for his first finish outside the top 3. Not a huge surprise (SC doesn't have a strong Libertarian streak, and *does* have a strong "God-and-guns" streak) but still has to be disappointing.