Barack Obama won South Carolina’s Democratic Presidential Primary by an overwhelming margin on Saturday.

As expected, Obama won overwhelming among African-American voters and also picked up a reasonable share of the white vote. Exit polls showed that Obama defeated Hillary Clinton 80% to 18% among African-Americans (the final Rasmussen Reports poll of the race showed Obama leading 68% to 16% among African-Americans).

This is similar to the national dynamics as support for Clinton and Obama breaks down along gender and racial lines.

John Edwards and Clinton each attracted 38% of white voters in South Carolina while Obama picked up 24%.

Among white male voters, Clinton was especially weak and picked up just 29% of that vote. Obama earned the votes from 27% of white males while John Edwards won 44%.

Clinton did best among white women, winning 44% of their votes. However, just 17% of African-American women supported the former First Lady.

Clinton also won among senior citizens leading Obama 40% to 32%. Obama picked up a majority of all voters under 65 and defeated Clinton by a more than two-to-one margin.

Obama won among all income, ideological, and education groups.

Bill Clinton has become a big part of the story in South Carolina. Dick Morris writes that the former President’s temper is hurting the former First Lady’s campaign. Exit polls suggest that may have been the case in South Carolina. Edwards defeated Clinton among those who made up their minds in the final days of the campaign. But, Obama still won a majority of those who made up their mind late as well as those who made up their mind early.

Nationally, Clinton leads Obama in the Rasmussen Reports daily Presidential Tracking Poll. Looking ahead to Super Tuesday, Obama currently leads in the latest Rasmussen Reports Georgia. Clinton leads in Florida, Alabama, Missouri, New York, New Jersey,and California.

Clinton and Obama both lead McCain, Romney, and Huckabee in general election match-ups.

Rasmussen Markets data suggest that, despite her loss in the Palmetto State, Clinton is sill the favorite to win the nomination. The former First Lady is given a % chance of winning the Democratic nomination while the markets show Obama with a % chance. Numbers in this paragraph reflect results from a prediction market not a poll. Using a trading format where traders "buy and sell" candidates, issues, and news features, the Rasmussen Markets harness competitive passions to provide a reliable leading indicator of upcoming events.

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