I think Obama's relatively weak but nonetheless real interactions with William Ayers are a legitimate campaign issue. But Obama's best response, after telling the facts of the relationship, is to point out who else supported him. Republican machers Walter and Leonora Annenberg gave the former terrorist $50 million. They also gave money to Rick Santorum, Strom Thurmond and Mitt Romney. Annenberg was Nixon's ambassador to Britain. If Obama is "palling around with terrorists," the Republican Annenbergs are funding them.
Yesterday, the McCain campain put out a press release boasting that Leonore Annenberg had just endorsed him for president. Why is McCain happy to accept the endorsement of a funder of terrorism?