A couple random thoughts. The former guy and some of his defenders claim he declassified documents even though (presumably) the bureaucratic process to do so was not completed. For a document to be classified, it has to be marked as "Confidential", "Secret", "Top Secret" or whatever, so to be declassified the marking has to be superseded by another marking: "Declassified" and the date and authority. (This is my understanding). So using Trump's theory, you can't prosecute someone for mishandling secrets, such as a Reality Winner without an affidavit from the President asserting he or she has not declassified the document?
While NARA rebutted Trump's claim that Obama had 33 million documents, I'm betting Obama actually has documents/records he shouldn't have, according to some lawyers.
I go back to Apollo 11, the moon landing, and the other astronauts. Years after their exploits we learned that astronauts made and kept, or sold, souvenirs of their flights. Obama is human, so I'm sure he has some personal souvenirs of his time in the office. Perhaps GWB's note to him in the Resolute desk or whatever, something which could qualify as an official document.
