Is race going to decide the democratic nominee?

I would like to say no, but it seems so, accept for the "black vote" part...it has been implied to me by other white voters, more times than not, that because I don't support Obama, I must be racist.....which is really very sad....I can only surmise that it is an amazing media/marketing thing....If Obama is elected president, we will regret it this time next year & people will be shaking their heads & wondering how it all happened.....He is not the best candidate for the job & the intensity of the melanin in his skin has absolutely nothing to do w/ it.