Republican U.S. Senate candidate Linda McMahon’s top spokesman, Tim Murtaugh, left the campaign Tuesday a little more than month after arriving in Connecticut.

Murtaugh replaced McMahon’s first communications director, Erin Isaac, who left McMahon’s 2012 campaign in July for family reasons.

“Tim Murtaugh is no longer with the campaign and we wish him nothing but the best,” Corry Bliss, McMahon’s campaign manager, said Wednesday.

The reason for Murtaugh’s abrupt departure is uncertain.

Murtaugh, whose aggressive style rubbed some members of the media the wrong way, was unable to be reached for comment Wednesday.

Before coming to Connecticut Murtaugh had worked for the Republican Governors Association, the Republican National Committee and several state and federal statewide races in Virginia.

An independent consultant before coming on board the McMahon campaign, Murtaugh previously worked with Chris LaCivita, McMahon’s senior consultant to the campaign.