It's the most vicious double standard I've seen, and the media is too gutless to report on it.
It's not a vicious double-standard when you consider that most African Americans will support Clinton in November providing she wins the nomination fairly; unfortunately, there are signs that white supporters of Clinton could defect to McCain, even if Obama does win the nomination fairly
Polling, and exit polling, suggests that more Obama supporters will vote for Clinton than vice versa; though there may well be state to state variance
Race, in my honest opinion, carries too much saliency in American politics. It's the 21st century after all. The fact that there are whites who won't vote for Obama because he is black or, for that matter, men who won't vote for Clinton because she is a woman, is appalling
A reason why I came to endorse Obama is because he we have an African American politician, who is not by any means a Black-identity political agitator running on past grievances; who, unlike, others before him has a serious shot at being elected the next president. He's post-racial; Obama is a man of the future as much as his former pastor seems stuck in the past
I can't say I've connected as much with any past presidential candidate than I have with Obama; and, while it's all hypothetical (being British though with ancestral ties to Georgia), the demographics to which I mostly belong have tended to prefer Clinton
Dave