Outgoing Homeland Security Secretary Kirstjen NielsenKirstjen Michele NielsenHillicon Valley: Twitter falling short on pledge to verify primary candidates | Barr vows to make surveillance reforms after watchdog report | DHS cyber chief focused on 2020 Sen. Kennedy slams acting DHS secretary for lack of coronavirus answers The 'accidental director' on the front line of the fight for election security MORE said Sunday she would be staying on until Wednesday, April 10, to ensure an "orderly transition."

"I have agreed to stay on as Secretary through Wednesday, April 10th to assist with an orderly transition and ensure that key [Department of Homeland Security] DHS missions are not impacted," Nielsen tweeted hours after President TrumpDonald John TrumpWinners and losers from the South Carolina debate Five takeaways from the Democratic debate Democrats duke it out in most negative debate so far MORE announced her departure from the agency.

Trump announced on Twitter earlier Sunday that Nielsen would be leaving her role at DHS, where she implemented the president’s hard-line immigration policies.


Trump tweeted that Kevin McAleenan, the commissioner of Customs and Border Protection, will lead the DHS on an acting basis.

In her resignation note earlier Sunday, Nielsen had said her departure from the agency was effective April 7.

The White House did not immediately respond to a request to explain the change in Nielsen's departure date.