Paragraphs of the day leading into tonight's final debate, with my emphasis on a distinct possibility:

In tonight's debate, John McCain seems set to "go there" on Ayers, goaded into it by Obama's plainly saying that McCain had until now been too chicken to say it to Obama's face.

It's quite possible Obama has a range of rebuttals ready. It's not as if he doesn't have plenty of examples of Mccain's dodgy friendships to choose from. He's also probably hoping McCain loses that famous temper, messily, on live TV in front of millions - the obvious followup being ads of McCain snarling and the simple question "would you trust this man with America's nukes?"

And 1/3rd of the country would say "yes" to that question...