Anyone that writes that Bill Ayers is Obama's mentor has some questionable conspiracy theories floating around in their brain. A couple of chance meetings with someone does not make them close enough for one to be a mentor. That would make anyone who was at these meetings a follower of Bill Ayers as well, including a number of republicans.
Kurtz is searching for something that is not there.
Try to have some filter for those that run around in a fantasy world, Kurtz being one of them.