Sen. Barack Obama sought Sunday to use his South Carolina victory to expand his appeal, saying the first Southern primary reflects what Americans are looking for.
Speaking to ABC's "This Week," Obama argued that the result in South Carolina "speaks extraordinarily well, not just for folks in the South, but all across the country. I think people want change."
But Sen. Hillary Clinton noted that both she and her top Democratic rival "have won a primary and a caucus." 
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