"Wine and Dine"
Via Nick Beaudrot, Granite Prof generates an “elite score” for various Democratic contenders based on their performance in different parts of New Hampshire. Nick comments “As you can see, yes, Obama is the wine track candidate, as are all insurgent challengers. But he is less wine track-y than almost all other challengers.”
Throw in the fact that the wine/beer balance is shifting over time in the Democratic party in favor of wine, and that Obama has tremendous strength among African-Americans of all tastes in beverages, this explains how Obama becomes the insurgent who wins.