South Bend, Ind., Mayor Peter Buttigieg continued his surprising rise, landing fourth, at 8 percent in a tie with Massachusetts Sen. Elizabeth Warren. Buttigieg did not register with voters in the first S.C. poll taken nearly three months ago.

The next two candidates, New Jersey Sen. Cory Booker and former Texas congressman Beto O’Rourke, took big hits this month in the crucial early-primary state.

Booker, one of most frequent visitors to South Carolina, saw his support cut in half, to 4 percent.

O’Rourke, who drew large crowds in his first swing in South Carolina, sits at 2 percent, tied with entrepreneur Andrew Yang — down 7 points from a month ago.