Straight shooter...read this:

But both of Cindy McCain's staged, teary drug-addiction confessions have been vintage John McCain. His MO is this: Get the story out -- even if it's a negative story. Get it out first, with the spin you want, with the details you want and without the details you don't want.

McCain did it with the Keating Five, and with the story of the failure of his first marriage (Cindy is his second wife). So what you recall after the humble, honest interview, is not that McCain did favors for savings and loan failure Charlie Keating, or that he cheated on his wife, but instead what an upfront, righteous guy he is.

Candor is the McCain trademark, but what the journalists who slobber over the senator fail to realize is that the candor is premeditated and polished. John McCain shoots from the hip -- but only after carefully rehearsing the battle plan, to be sure he won't get shot himself.

from here with an update.

His first marriage ended due to his extra-marital affairs and eventually he dumped his wife for a woman 17 years his junior. He freely admits this, another example of his controlling the spin, I suppose.