Is it possible that Oprah...is a racist?

This is probably the first post that could cause a nuclear explosion on my being.

I'm just pontificating a bit here...but, is it possible that Oprah is showing some racism here? After over a good 14 years? of being on top of the television world (she made her big resurgence around '93), she NOW starts campaigning for a Presidential candidate? She didn't think it was important enough to support John Kerry, didn't feel it necessary to help campaign for Al Gore in 2000? Has no need to support her fellow female, Hillary Clinton?

Hmmm...it's just a postulation, I'm starting to think that if Obama wasn't black, she would not be doing all that she is for him. No matter how much she believed in him, no way would she stick out her neck for a white man who had the same message as Obama. I think Oprah is being a racist here, by only giving Obama help because he happens to be a black man who is incredibly impressive.