New Jersey Gov. Chris Christie arrives to speak to delegates at the Republican National Convention in Tampa, Fla., on Tuesday, Aug. 28, 2012. (AP Photo/Charlie Neibergall)

Photo by: Charlie Neibergall

New Jersey Gov. Chris Christie arrives to speak to delegates at the Republican National Convention in Tampa, Fla., on Tuesday, Aug. 28, 2012. (AP Photo/Charlie Neibergall)