I wouldn't bet the farm on it.
McCain has a lot of good personal qualities, but like Nixon (who didn't), his political philosophy is very loosely tied down, and he also seems willing to accept a lot of things other people tell him without much filtering.
Already he's guzzling the global warming Kool-Aid by the gallon, which should make a lot of liberals happy. He still stinks on immigration.
His foreign policy status is good--for now. Who knows what he might think a year from now?
I have no idea how he's going to screw up before the election, but I wouldn't bet against him doing it.
Voted "Person Most Likely To Shove A Six-Gun Down His Own Pants And Empty The Chambers."