As Hillary Clinton's rout in West Virginia underscores, Appalachia is not Obama country. Of 410 counties in the region, which stretches from New York to Mississippi, Barack Obama has won only 48 (12 percent) so far. Of the counties he has lost, nearly 80 percent have been by a margin of more than 2 to 1. The region is whiter, poorer, older, more rural and less educated than the rest of the country, and seems to be voting like a bloc.

In fact, it hasn't been Democratic country for the last two presidential elections. Only 48 of the counties voted for John Kerry in 2004, down from 66 counties (or 16 percent) that went for Al Gore in 2000. The only states with counties in the region that have consistently voted Democratic in the last four such elections have been New York, Pennsylvania and Maryland.

Part of Clinton's win-while-losing argument is that her husband won more than half the region's states in both elections, and so can she. Unfortunately, she is not the Bill Clinton of 2008. Obama is, and his candidacy could energize enough young voters and African-Americans to shift the landscape of swing states.

Obama is unlikely to win the heart of Appalachia in the general election, but he may not need to if he can make up ground on its northern frontier. If he wins New York and Pennsylvania (he lost both in the primaries) and flip-flopping Ohio (another primary loss) he will be in good position.