The longer a party holds power, it's harder to make sure everyone marches to the same tune.
It's hard for me to see how he gets back up into a positive rating in the opinion polls. Congress has got no stomach for much of the agenda that he has.
It seems what McCain is doing is the classic move that Richard Nixon patented - run right during the primaries, then run center for the general. He's doing what he has to do. To a purist it doesn't smell right, but find me someone who hasn't done that who won.
A lot of people are going to conclude if this thing passes, Perry is going to be hard to stop.