Colin Reed had served as Christie's deputy communications director. He previously served as communications director for Brown's unsuccessful 2012 re-election bid in Massachusetts.
"I've known Scott for more than four years," Reed told WMUR. "An opportunity to work with him again is something I couldn't pass up. I am excited for the next seven months and a victory in November."
Reed was among the 20 individuals and organizations who received subpoenas in January from the New Jersey legislative committee investigating the George Washington Bridge Lane closures. As WMUR pointed out, Reed's move to New Hampshire also puts a second former Christie aide in a top spot in the state's Republican party. Matt Mowers, who worked for Christie's re-election campaign last year, is currently the executive director of the New Hampshire Republican Party. (Mowers has also received a subpoena as part of the legislative investigation.)