Incoming White House Chief of Staff John Kelly John Francis KellyMORE's top aide is expected to join him at the White House as a deputy chief of staff, CNN reported Saturday.

Kirstjen Nielsen Kirstjen Michele NielsenDHS IG won't investigate after watchdog said Wolf, Cuccinelli appointments violated law Appeals court sides with Trump over drawdown of immigrant protections Democrats smell blood with new DHS whistleblower complaint MORE has been serving as Kelly's chief of staff at the Department of Homeland Security.

Trump appointed Kelly, who has served the Homeland Security secretary since January, as his new White House chief of staff on Friday.

ADVERTISEMENT

Trump made the announcement via Twitter shortly after returning to Washington from a speech in Long Island, N.Y. The president's now-former chief of staff Reince Priebus Reinhold (Reince) Richard PriebusLeaked audio shows Trump touted low Black voter turnout in 2016: report Meadows joins White House facing reelection challenges Trump names Mark Meadows as new chief of staff MORE reportedly tendered his resignation on Thursday, but accompanied Trump to New York on Friday.

The deputy chief of staff job expected to be filled by Nielsen was most recently held by Katie Walsh Katie E. WalshCNN's Camerota cautions viewers that explosive Wolff book 'isn't really journalism' Author has tapes of interviews with Bannon, officials: report White House barring employees from using personal cellphones at work MORE, who left the post in March to work for the outside group America First Policies.

Like Priebus, Walsh previously worked for the Republican National Committee. Two other RNC alums, White House Press Secretary Sean Spicer and Michael Short, a press aide, left their posts at the White House over the past week.

Nielsen most recently worked as the president of Sunesis Consulting and served as a senior fellow and member of the Resilience Task Force at the George Washington University's Center for Cyber and Homeland Security.

She worked in the White House under former President George W. Bush, serving as a special assistant to the president for prevention, preparedness, and response on the White House Homeland Security Council.