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Romney's VP list

Chris Christie, 49, is a rock star in the Republican Party. He chose not to run for president in 2012 and instead endorsed Romney. He has been an effective advocate for him on the campaign trail. As a Republican governor in a mostly Democratic state, he has taken on entrenched Democratic institutions there with fervor. A bombastic politician who is fluent on the issues, Christie would be an ideal attack dog on the campaign trail. Some conservatives would frown on the pick, fearing he is too moderate. Some Republicans also worry that the contentious Christie could be a distraction with his verbal fire-bombs, or overshadow Romney, who sometimes has trouble connecting with voters. A Quinnipiac University poll found him the lead choice of likely voters for the No. 2 slot.

Romney's VP list

The likely front-runners and long shots on Romney's short list.