Your concern about careless handling of classified documents is well-founded. As you point out, it has been present in the Clinton, Obama, Trump and Biden administrations. Once one administration has people who mishandle documents, who are caught but nothing (or something minimal) happens, then it is easier for the following administrations to relax law enforcement. One previous responder suggested that Biden had the materials lawfully. I hope that is the truth, but I find that hard to believe absent prior notice being provided to the National Archives upon their removal and the records being kept securely. However, comparing Biden’s offenses to Trump’s is like comparing someone who stumbles against you to someone who sneaks up behind you and chops off your right leg with a machete. If nothing else, Democrats need Biden. He is probably the only Democrat who can beat Trump in an election.