Here Are All the Major Trump Team Players Who Heard 'You're Fired!' — or Quit, Been Replaced or Moved On

After 14 months as the White House's acting chief of staff, Mick Mulvaney will be replaced by Rep. Mark Meadows, President Trump said late Friday in a tweet.

"I am pleased to announce that Congressman Mark Meadows will become White House Chief of Staff. I have long known and worked with Mark, and the relationship is a very good one," Trump wrote about the Republican congressman from North Carolina.

The president thanked Mulvaney for "having served the Administration so well."

While Trump did not give a reason for the replacement, he wrote that Mulvaney will become the United States Envoy for Northern Ireland.

It remains unclear if Mulvaney will continue to serve as the director of the Office of Management and Budget, a position he held concurrently with his time as chief of staff.