From that standpoint I'd agree. But it appears he intends to run a squeaky clean general election campaign staying above the fray. If so, he's his own worst enemy. That's GOP Congressional politics in a nutshell; something we here at FR have deplored for years.
The DIMs won't play along as we all know. McCain will come to look like another Bob Dole if he continues along this route.
You have to wonder if McCain wants to be President. If he does, he’s going to have to throw everything there is at Obama (or his surrogates do). If he’d rather be “clean” than President, he’ll get his wish.