Mitt Romney is trouncing the rest of the GOP field in South Carolina, according to a new Reuters/Ipsos poll. The frontrunner’s 37 percent support opens up a 21-point lead over Ron Paul and Rick Santorum, who are tied for second place, according to the survey. Newt Gingrich has fallen to fourth place with only 12 percent of voters’ support. The poll also found that South Carolina voters—both Republicans and Democrats—would favor Romney over Obama 46 to 40 percent. The state has voted Republican in nine of the last 10 presidential elections.