Romney told a crowd of about 50 on the steps of Haddonfield Borough Hall that New Jersey has "tried liberal" and it's time for the state "to have a chance to try conservative."
Christie is competing for the GOP nomination in Tuesday's primary against conservative Steve Lonegan and Assemblyman Rick Merkt. Christie leads in independent polls, but Lonegan captures more of the ultra conservative vote. Merkt is a distant third.
The winner will face Democrat Gov. Jon S. Corzine in November.
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