Are some McCain supporters racist?

My interpretation of this image: I wanted Hillary, she pulled out, and there's no way I'd vote for a black man so I went for the other white person in the race.

I hope I'm just misunderstanding this photo - taken from the McCain website.

Also, an interesting article on "Young Republicans, Blue About the Prospects Ahead." These 20-somethings will be 30-something and vying to run the country. Pay heed.