This, of course, has nothing to do with the economy.  McCain has spent the last 3 years serving himself, the White House, and his political ambition.  His move to the neo-con right has been so clear and labored that he left lines in the sand - we can point right to the move.  He has a cabinet made up of lobbyists and snake oil salesman who dress up neo-con corporation loving policy in avergage joe American straight-talk mythology.  

John McCain might have served his country in the 1960s but it isn't his country he is serving now.  Obama needs to be strong on this, and take a cue from Richard Clarke who has had my favorite line of the election so far.  Clarke said recently in a conference call that he did not question McCain's patriotism - it just seemed that to McCain, loving your country and lying to your country were not contradictory actions.

So Obama, hit McCain where it hurts - the truth about who he's become and the agenda he now serves.  Don't play into the bogus pseudo-patriotic notion that his service in Vietnam excuses (let me count the ways this has been brought up) his cheating on a very sick wife, his lack of intellectual curiosity and fortitude with regard to issues, and most recently, his cheating at the SaddleBack debate.  

Stop reminding America of who John McCain used to be and talk about the shape-shifting, power hungry, quick drawing, corporate loving, neo-conservative that he is.