Christie, who considered a presidential bid himself earlier in the year, denied having "a moment of regret" since opting against throwing his hat in the ring.
"I've not had a moment of regret. Not even a pang of regret," he said.
He also scoffed when he heard what Sarah Palin told Fox Business Network on Monday night: "It’s not too late for folks to jump in. Who knows what will happen in the future?"
"It's too late," Christie said. The first vote of the 2012 cycle is in Iowa on Jan. 3.