Christie is trying to become the first Republican elected in a New Jersey statewide race since 1997.
The 46-year-old Mendham resident built a reputation as a corruption fighter during the seven years he spent as the state's top federal law enforcement official under President George W. Bush.
Corzine faced token opposition in the Democratic primary. Vice President Joe Biden appeared with the 62-year-old former U.S. senator to formally launch his re-election bid after polls closed Tuesday night.
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