8. Because that would be such a good way to get votes in New Jersey?
I don't give a rat's ass whether Christie's motivation is the 2016 elections or whatever. Romney is trying to paint himself as the great bipartisan hope. Having a repub governor praise the President is a good thing. And spitting in his eye would be the colossal blunder of all time. Of course, there is not chance that the President would do such a thing. Only armchair politicos on DU would think he should.