He could have been rolling his eyes at the silliness of the moron asking the question of him.
The printed word often doesn't accurately portray the context in which statements were made, nor does it convey the setting, mood, body language, tone of voice, etc.
Then again, maybe Gov Christie was expressing incredulity at the question. Could be - but watch what happens as soon as the Sarah Express takes off. Lots of weasely politicians and journOlists will act as though they've never had a single cross word for her.
Doesn’t read like he refudiated the idea....
Good point.
around 4:20 in the top clip.