Maverick reruns

John McCain's newest ad tries to resuscitate his credentials as a maverick, and, by doing so, allow him to argue both that he is the experienced candidate and that he is the candidate who is willing to 'fix' Washington. He's an insider where we want experience, but an outsider where we need change. It's tough balance to strike, and it'll be interesting to see what the Obama campaign does to try to knock him off that tightrope.