Cory Mason has been campaigning door-to-door for Barack Obama and some voters "are having a hard time coming to terms with voting for an African-American... They say 'I just simply won't vote for a black.'" And some people "are more hostile and use stronger language." according to Mason. You can read the whole article, written by Dustin Block at racineinsider.blogspot.com.
Further on in the article: "While there are racist voters, there are also new voters excited about the possibility of an African-American president." and further still, "Efforts to encourage minority residents to get registered and vote early could also offset racial prejudice."
So if I understand this correctly, not voting for someone because they are black is bad and racist but encouraging minorities who are presumably "excited" to vote for a black candidate is good because it could offset racial prejudice.
The basic message: white racism bad, black racism good.
Don't worry, we will soon be unified.