On Lilo's note about Sununu saying Powell is only supporting his character because of race, Powell's former chief of staff Laurence Wilkerson said this:
"My party, unfortunately, is the bastion of those people -- not all of them, but most of them -- who are still basing their positions on race. Let me just be candid: My party is full of racists, and the real reason a considerable portion of my party wants President Obama out of the White House has nothing to do with the content of his character, nothing to do with his competence as commander-in-chief and president, and everything to do with the color of his skin, and that's despicable,"
http://www.clevelandleader.com/node/19229