Obama's won lots of primaries & caucuses, but those aren't general elections. I stated that blacks have only on a few rare occasions been elected to a major statewide office in any state. That means elected in a general election where voters of all political persuasions are participating. There's no doubt that Obama can win liberal white votes anywhere in the country in a Democrat primary or caucus. What I'm doubting is his ability to win independents, and I'm also suggesting that some lower income white Democrats won't vote for him, in the general election for president.