I'll repeat what I posted on another thread: The urban black base will not desert the Demonrat Party unless the Clinton mob literally lynches Obama on the convention floor on live prime-time TV. They're not going to vote for an angry old white man like McCain.
But if Shrillary is the dim nom, they will stay home.
No, they won’t vote for McCain. They won’t even go to the polls if she takes the nomination from Obama.