Brown is hosting the event alongside Ron Kaufman, formerly a senior adviser for Mitt Romney and the Republican National Committee committeeman for Massachusetts, and former Massachusetts gubernatorial candidate Charlie Baker (R), according to Mike DuHaime, a senior adviser for Christie.

The fundraiser is taking place at the home of Christopher and Jean Egan, according to The Boston Globe. Attendees are asked to donate a minimum of $3,800 according to the Globe.

Brown has kept a low profile since leaving office, and recently said he would not run for now-Secretary of State John KerryJohn Forbes KerryTrump's dangerous Guantánamo fixation will fuel fire for terrorists Tech beefs up lobbying amid Russia scrutiny Overnight Tech: Senate Dems want FCC chief recused from Sinclair merger | Tech rallies on Capitol Hill for DACA | Facebook beefs up lobbying ranks MORE's Senate seat. Brown has, however, left the door open to running for governor of Massachusetts. 

On Thursday, Virginia Gov. Bob McDonnell (R) hosted a fundraiser for Christie in Washington, D.C. Facebook founder Mark Zuckerberg also held a fundraiser for the New Jersey governor in February.

Christie has most recently appeared in national headlines for not being invited to the Conservative Political Action Conference. Christie, who often mentioned a strong presidential candidate in 2016, shrugged off the snub.

"That's their prerogative," Christie reportedly said. "I wish them the best."