It's amazing to me that the McCain campaign would dare to play the "guilt by association" game, attempting to tie Barack OBama to a former 1960's radical, when McCain's own background has such a rich vein of questionable associations to be mined by anyone so inclined.

Steve Benen has more: 

But as long as we're on the subject, McCain's associations continue to be increasingly interesting as well. We've known for a while that McCain has befriended a convicted felon who advised his supporters on how best to shoot federal officials, used the money of a convicted criminal to help buy a house, befriended a radical anti-Catholic televangelist, befriended a radical anti-American televangelist, was a long-time associate of Charles Keating, and hired for his campaign the publisher of a Confederate nostalgia magazine who has described Nelson Mandela as a "terrorist." This week, we also learned about McCain serving on the board of the extremist U.S. Council for World Freedom, where he worked alongside Iran-Contra figures, and a eugenics researcher studying "white superiority."