EDISON - Gov. Chris Christie (R-N.J.) was in mostly good spirits during his news conference earlier today where he ruled out running for president in 2012. However, he did show a flash of his famous temper when asked about people who criticize his weight.

Christie has said that he doesn't mind jokes about his weight, but serious criticism on the subject is off-limits.

David Letterman has dedicated entire Top Ten lists to Christie's weight, and the governor has said the jokes don't bother him. However, the governor draws the line at serious journalists who attacked him for his weight, such as columnist Michael Kinsley, of Bloomberg.

Kinsley recently wrote, "I'm sorry, but New Jersey Governor Chris Christie cannot be president: He is just too fat." Kinsley later added "We shouldn't overlook it -- unless he goes on a diet and shows he can stick to it."

The governor calls those kinds of comments unfair and ignorant. Christie says, "The people who pretend to be serious commentators who've written about this are among the most ignorant people I've ever heard in my life. To say that you are overweight and are therefore undisciplined - I don't think that undisciplined people get to achieve great positions in our society. So that kind of thing is just ignorant."