Subject: Trump was warned to return documents...
...by an associate.

n late November 2021, as officials at the National Archives were trying to persuade former President Donald J. Trump to return a trove of records he had taken from the White House when he left office, one of Mr. Trump’s associates advised him in the sharpest terms possible to give the materials back, newly unsealed documents show.

“Whatever you have, give everything back — let them come here and get everything,” the unnamed associate told Mr. Trump, according to an interview the person gave the F.B.I. “Don’t give them a noble reason to indict you, because they will.” NYT

But Trump's monstrous ego and narcissism prevented him from considering the advice. Oh, and he had mentally and secretly declassified them, right?