The PPP tracking poll has Gingrich at 35 percent and Romney at 29 percent. Ron Paul and Iowa caucus winner Rick Santorum are well back in a third-place tie at 15 percent.
The lead for Gingrich is largely with the party’s conservative base in South Carolina. Gingrich has a 40 percent-to-22 percent lead over Romney among evangelicals and a 46 percent-to-21 percent among Tea Party voters.
Romney is leading with non-evangelicals (39-30), independents (30-26), moderates (44-23), and women (32-31).