South Carolina Republican Presidential Primary "Mitt Romney leads the South Carolina Republican presidential primary with 29%. Newt Gingrich is in second place with 25% and Ron Paul is in third place with 20%. Paul has gained the most and Rick Santorum has lost the most since the last American Research Group survey on January 4-5. In that survey, Paul was at 9% and Santorum was at 24%. Gingrich and Romney are tied among self-identified Republicans with 29% each, followed by Paul with 18%. Paul leads among independents and Democrats with 29%, followed by Romney with 27%, Gingrich with 12%, and Rick Perry with 11%. Gingrich leads among those likely primary voters saying they are supporters of the Tea Party with 28%, followed by Romney with 24%, Paul with 20%, and Santorum with 11%. Romney leads with 33% among those saying they are not supporters of the Tea Party or are undecided about the Tea Party, followed by Gingrich with 23%, and Paul with 21%. Gingrich leads among evangelical Christians with 40%, followed by Perry with 15%, Romney with 13%, Santorum with 12%, and Paul with 10%. Among likely voters saying they are not evangelical Christians, Romney leads with 48% and followed by Paul with 33%. Gingrich leads among men with 29%, followed by Paul with 23%, Romney at 18%, and Santorum with 14%. Among women, Romney leads with 38%, followed Gingrich with 22%, and Paul with 18%. "