

Illinois senator Barack Obama's bid to become the first African American president, just took another step forward.
Saturday, boosted by a significant turnout of black voters, he won the South Carolina primary.
The win sends Obama into the next phase of the campaign with renewed momentum after losing to Clinton in New Hampshire and Nevada in successive weeks.
Black voters reversed what had been a clear preference for Clinton before Obama's victory in Iowa.
Less clear was whether Obama would continue to run strong among white voters, as he did when he won the Iowa caucuses and finished second in the New Hampshire primary earlier this month.
Hillary Clinton came in a distant second while john Edwards trailed in 3rd place.
This is the second win of the nomination battle for Obama, who won the Iowa caucuses earlier this month, but this is his first win in a state with a sizable African-American population.
Women and African Americans, courted heavily by the candidates, turned out in very large numbers to vote in what became a bitter Democratic primary marked by rhetoric about race and gender.
Exit poll results indicate just over half of Democratic primary voters were black this year -- the highest turnout among African-Americans in any Democratic presidential primary at least since 1984, reports ABC News' Gary Langer. Women accounted for six in 10 voters, similar to their 57 percent turnout rate in 2004.
The win Saturday night gives Obama a boost, and momentum before Tuesday's Florida primary and before the much hyped Super Tuesday, Feb 5, in which 20 states will hold primaries.