The U.S. National Archives said it still doesn’t have all of the records from White House staffers that it should have received when Donald Trump’s presidency ended and is pursuing missing material, specifically electronic messages.

"While there is no easy way to establish absolute accountability, we do know that we do not have custody of everything we should,” Debra Steidel Wall, the Acting Archivist of the United States, said in a letter dated Friday to Representative Carolyn Maloney.

The information request by the New York Democrat, who chairs the House Committee on Oversight and Reform, is coinciding with the court-ordered review of documents seized from Trump’s Mar-a-Lago home that the former president secured after the FBI searched the premises as part of a federal probe into whether government records were mishandled.