With his victory in the South Carolina primary Saturday, Sen. Barack Obama offered convincing proof of his ability to appeal to Black voters. But to stay on course for the Democratic nomination when 22 states vote on Feb. 5, analysts say, Senator Obama will need to reach further and wider.
African-Americans are a big part of the Democratic vote in Georgia, Alabama, and a few other Super Tuesday states. But experts say Obama's fortunes on Feb. 5 will hinge on the groups of voters responsible for his only other win, in Iowa: independents, college students, and well-educated and affluent whites.
Above: Democratic presidential candidate US Senator Barack Obama greets supporters at his South Carolina primary night rally in Columbia, South Carolina, Saturday.