S.C. Poll: Romney 32, Gingrich 21, Paul 14, Santorum 13

The latest InsiderAdvantage poll of likely registered voters in the South Carolina Republican primary:

In the poll of 720 likely registered voters in South Carolina GOP primary, Romney was leading with 32 percent of the vote. Gingrich was second with 21 percent, followed by Ron Paul with 14 percent. The rundown:  Romney: 32 percent Gingrich: 21 percent Paul: 14 percent Santorum: 13 percent Huntsman: 6 percent Perry: 5 percent Other: 2 percent Undecided/ No opinion: 7 percent

The poll includes Jon Huntsman, who receives support from 6 percent of the respondents. Huntsman is expected to drop out of the presidential race today in South Carolina and endorse Mitt Romney.