He knows he lost.
He's putting his outsized and fragile ego ahead of the good of the nation.
He's programming his bogus claims into the minds of his followers.
He's making a lot of bullshit moves, calculated to create as much havoc as possible for the incoming President.
His refusal to address COVID at this critical time is paramount to a crime against humanity.

For these and many other reasons, Trump should be put on trial.
He needs to be held accountable for all the damage he's done.