If there is a salvific element in the GOP it will come from Palin, Jindal, and others, not from the old boys who have gamed the system for decades.
Whether McCain is or isn't a "maverick" isn't the issue, it's that on the things that matter, at least to me, his instincts are either wrong, off-center, or outright naive. The bills he has co-authored in recent years identify him, and every one of them is misbegotten and deeply dangerous to the Republic.
That said, we have no choice but to hope he wins and can be steered in a better direction. The alternative is a Chicago brownshirt.