McCain holds steady lead in South Carolina

By John Whitesides, Political Correspondent

WASHINGTON (Reuters) - Republican John McCain holds a steady 7-point lead over rival Mike Huckabee in South Carolina two days before the state casts votes in an unpredictable presidential nominating race, according to a Reuters/C-SPAN/Zogby poll released on Thursday.

Support for McCain, an Arizona senator, held firm overnight at 29 percent, with former Arkansas Gov. Mike Huckabee sliding one point to 22 percent. Former Tennessee Sen. Fred Thompson climbed two points to move into third place at 14 percent.

A portion of the polling was conducted after former Massachusetts Gov. Mitt Romney's breakthrough win in Michigan on Tuesday, but he still slipped one point to 12 percent. Texas Rep. Ron Paul and former New York Mayor Rudy Giuliani were tied at 5 percent.

"Essentially there was no real movement overnight in what looks like a very stable race," said pollster John Zogby.

"I was looking for a sign of a Romney bounce after Michigan and didn't get it," he said. "He may have to wait another 24 hours before there are signs, but it seems reasonable he would get one."

The rolling tracking poll of 813 likely voters in South Carolina's Republican primary had a margin of error of 3.4 percentage points.

South Carolina's Republican primary on Saturday is the next battleground as both parties choose candidates for November's election to succeed President George W. Bush. Nevada also holds Republican and Democratic nominating contests on that day.

The seesawing Republican race has produced three winners in the first three significant contests -- Huckabee in Iowa on January 3, McCain in New Hampshire last week and Romney in Michigan.