Breaking: Trump announces new chief of staff — via his Twitter account

President Donald Trump announced his pick to replace outgoing chief of staff John Kelly in a pair of tweets Friday evening.

Here's what he said

"I am pleased to announce that Mick Mulvaney, Director of the Office of Management & Budget, will be named Acting White House Chief of Staff," the president tweeted, "replacing General John Kelly, who has served our Country with distinction."

"Mick has done an outstanding job while in the Administration," he added.

"I look forward to working with him in this new capacity as we continue to MAKE AMERICA GREAT AGAIN!" Trump said in a second tweet.

"John will be staying until the end of the year," he concluded. "He is a GREAT PATRIOT and I want to personally thank him for his service!"

Mulvaney now adds chief of staff to the various roles he has served under in this administration.

The media reported numerous stories of strife between John Kelly and the president, but both denied and rejected those reports often.

The president announced that Kelly was leaving the position on Saturday.

"John Kelly will be leaving at the end of the year, we will be announcing who will be taking John's place, it might be on an interim basis, I'll be announcing that over the next day or two," he told the media.

Here's a tweet from the president in 2017 celebrating the one year anniversary of John Kelly as chief of staff:

The president was reportedly considering choosing his son-in-law Jared Kushner for the White House position, but apparently decided against it.

Here's Fox News reacting to the news that Mulvaney will be the next chieff of staff: