He looks delusional in those two photos I posted here. The man genuinely looks like he's several cards short of a deck.
I think he knows he won't be. He just hates W for "stealing" the nomination from him, and will do everything he can to ruin W's Presidency. He's doing the best he can at that - Campaign Finance Reform, anti-torture legislation, the gang of 14, etc.
And he'll probably think up some new mischief based on the NYT hit piece.
If I lived in AZ, I'd vote for the most liberal Dem just to get rid of him.