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 Kerry2020 Dem contenders travel to key primary states When it comes to Colombia, America is in a tough spot 36 people who could challenge Trump in 2020 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."