A suggestion for McCain tonight: he should bring up Keating Five himself and talk about how it changed him and gave him a new focus in the Senate.  He can turn to Obama and say "You want to talk about change...".  I'm an Obama supporter, but I think his playing the Keating Five card is a strategic blunder.  If I were McCain I would turn the attack on its head.  It would show humility, grace and, yes, a maverick-ness.  I've learned from my mistakes, I've gotten better.  Look what I've accomplished as a result of what I learned, look at my experience, my record, my character.  It would not only enhance McCain, it would also diminish Obama, it would highlight the pettiness of his negative attack.  Or perhaps it's political suicide.  But does McCain have any options left?  Just a thought...