COLUMBIA, S.C. — Barack Obama routed Hillary Rodham Clinton in the racially-charged South Carolina primary Saturday night, regaining campaign momentum in the prelude to a February 5 coast-to-coast competition for more than 1,600 Democratic National Convention delegates.
Former Sen. John Edwards of North Carolina was running third, a sharp setback in the state where he was born and scored a primary victory in his first presidential campaign four years ago.
The Associated Press made its call based on surveys of voters as they left the polls.
About half the voters were black, according to polling place interviews, and four out of five of them supported Obama. Black women turned out in particularly large numbers. Clinton and Edwards each won roughly 40 percent of the white vote, with about 25 percent going to Obama, the first-term Illinois senator.
The victory was Obama's first since he won the kick-off Iowa caucuses on January 3. Clinton, a New York senator and former first lady, scored an upset in the New Hampshire primary a few days later. They split the Nevada caucuses, she winning the turnout race, he gaining a one-delegate margin. In a historic race, she hopes to become the first woman to occupy the White House, and Obama is the strongest black contender in history.
The South Carolina primary marked the end of the first phase of the campaign for the Democratic presidential nomination, a series of single-state contests that winnowed the field, conferred co-front-runner status on Clinton and Obama but had relatively few delegates at stake.
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