His victory speech was much more energetic than in Virginia -- another sign that he is gaining momentum.
So why am I more optimistic than some?
My take has always been that McCain could beat Hillary for two reasons: Conservatives would turn out to defeat her, and independents would support McCain.
... But my concern has been how he matches up against Obama.
If I sound overly-optimistic, it's because I'm starting to see that Obama can, in fact, be painted as a bad guy whose ideology would be dangerous for America. McCain is wisely getting to this task immediately. And because of his background, he has (in a matter of days) begun to define Obama in a way that Hillary has not been able to do in more than a year.
I also think there's been enough "doom-and-gloom" this year about the GOP's chances. Much of it, I think, is overwrought.
McCain has a long way to go, but he seems to be on the right track.