Public Policy Polling is conducting a three-day tracking-type poll in South Carolina. Last night’s results show that Newt Gingrich has now taken a 6-point lead over Romney (34% to 28%). Ron Paul is in third place with 15%. Rick Santorum is in fourth place with 14%. Gingrich’s debate performance seems to have been a big factor in his gain in the poll. 56% of those polled watched the debate. Debate watchers went for Gingrich by a margin of 43% to 27%. Gingrich as a 50% to 18% advantage among S.C. Tea Party supporters, 39% to 23% among “Very Conservative” likely Republican voters and 37% to 20% among evangelicals. The margin of error is +/- 5%.