In case you think the issue here is "Trump had a document in a box," this article (no paywall) will disabuse you of that notion. https://wapo.st/43P0RYJ
Evidence grows that Trump hoarded documents — and showed them to people

The slow emergence of new details yields an increasingly clear picture.

The Washington Post
@pbump @LexyCameron The article misses a key date. Several boxes of documents were photographed being removed from the White House on January 14, 2021 — not the 20th.