It's amazing how a presidential candidate coming from 20-30 points behind in all the polls, being up against two of the most popular figures in our nation's history, can end up getting within the margin of error or even beat those two historical figures, in a primary or caucus; but he's done it.  Barack Obama not only won in South Carolina, he won by a wide margin, something like 27 points.  He won in large part because of getting 81% of the black votes (male and female), but he also got a health three way share of the white men/women, all age voters.  In other words, he slaughtered Bill and Hillary Clinton in their (own) territory.