New Jersey Gov. Chris Christie is hot on the campaign trail, not for himself, but for fellow Republicans across the country.

Christie is campaigning Friday in Indiana for U.S. Rep. Mike Pence, a GOP candidate for governor.

On Thursday, Christie gave North Carolina voters a dose of his rough-and-tumble charm.

Christie was campaigning for Pat McCrory, who is running to become the state's governor.

Christie urged voters at a rally to study McCrory's record, and then added this zinger.

"You mess this thing up (laughter)... you mess this thing up and have McCrory come up just this short, I will be back," said Christie.

Christie spoke at a rally at Catawba College, which is McCrory's alma mater.