A more complete analogy would be McCain vs. Obama = Montgomery vs. Slim, with McCain clearly being Montgomery and Obama being
Slim.
Montgomery was conceited, boastful, and often went against the majority. He was a "maverick" that always thought he knew best, and never accepted any of his failings. I could go farther, but, quite literally, almost every personal detail of Montgomery's personality matches up to the personality that McCain is desperatly trying to sell to the American audience (not to mention sometimes rash decisions based on preconceived notions, etc).