McCain made a huge stink about torture, but he was careful not to say that waterboarding was always torture and those who used it were criminals.
He made a big deal about campaign finance reform, but did tried to do little or nothing against the 527's.
I think it is safe to say that he is obsessed with being president to an unhealthy degree, and will tolerate any insult, hug any cretin, and pay any price to accomplish his goal.
He offers nothing for health care, he now refuses to support his own ideas on taxes and immigration. He is a maverick only to the degree that it gets him votes. The only good thing about him over other Republicans is that I think he is less likely to become a lobbyist when he retires.