New Jersey Gov. Chris Christie during an appearance on CBS’s Face The Nation isn’t ruling out the possibility that the topsy-turvy GOP presidential race may end up in a contested party convention this summer if Mitt Romney loses Tuesday’s Michigan primary.

But, he firmly added, Santorum will not be the Republican nominee.

Christie, who’s endorsed Romney, says he thinks Romney will beat Rick Santorum in Romney’s native state — and that would lessen chances of a convention fight.

But Christie notes the race has had several different front-runners and probably will keep going up and down.

He said on CBS’ Face The Nation, “We have to be patient and take a deep breath and let this process work its way out.”

The governor says he’s not really interested in being a vice presidential candidate, but would listen if Romney asked because “I love my party enough and I love my country enough to listen.”

He defended Romney’s comments about having several cars by saying that it’s not a secret people with a lot of money may have several cars.

(Copyright 2012 by The Associated Press. All Rights Reserved.)

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