Now, he's shrugging off a law Congress passed decades ago to preserve White House papers — and historians are taking him to court.

At stake is the fate of millions of papers and electronic messages — not just for Trump's second term in office, but for future presidents and people who want to understand them.

Matthew Connelly, a history professor at Columbia University, says the move shows Trump is trying to ensure the presidency "is answerable to no one, not even the court of history."

"This latest case is just another example of the utter contempt with which they hold not just history but the rights of their fellow citizens to hold them to account," he said, about the current administration.