Run him out of money early. Make his supporters spend their money too. I wonder if there are any legal attacks on campaign financing (meaning lawsuits) that might divert additional money and attention. He’ll use all of that and then some against a conservative opponent, may as well fight fire with fire.
His radio adverts are mean and nasty and counterproductive. Emblematic of McCain himself.
Well, he as much as admitted he was corrupt while he was "fighting" for McCain/Feingold.
Probably some good "I'm corrupt" McCain quotes available for the looking.
I doubt he will run out of money...he has over 20 million in the coffers not including the latest fundraiser with Sarah.