Since I'm a sports fan, I'm familiar with the hardnose fitness program, P90X, that Paul Ryan credits for his "six pack abs" and generally great bod. For Paul, it's very disciplined: Ayn Rand for the mind, and Tony Horton for the physique.
Chris Christie, on the other hand, is large. Very large. With the personality to match. Words like "steamrolled" and "overwhelmed" come to mind. I guess "bully" depends on your politics.
Both men are positioning themselves for next time. In wrestling they have weight class. Nothing like that in politics. So, who is going to be best at pushing the rest of us around?