Smerconish likes to dismiss it as the most casual sort of "association." Thomas Sowell article posted here the other night emphasized it is an ALLIANCE. That's where I think McCain's ad went wrong, calling them "friends," should have called the "allies."
Friends, lovers and allies. The “lover” part is inferred from the Frank Davis background, and also from the commune-sex the Weathermen indulged. Just a guess, no other evidence. In fact, I also have a bit of a hunch that Obama is powering himself within that group of fellow travelers by being chaste — unobtainium — within that otherwise libertine karmic circle of radicals.