My guess? Trump, et al knew that Biden had classified docs he shouldn't have had access to but there was no way simply alerting the press to that fact was going to create so much as a ripple in their timeline. So what does he do? He lays a trap. He knows the fake news can't help themselves. He knows they'll use anything and everything he gives them if they think it can help them. He knows he has every right to keep classified docs as President and to declassify them whenever and however he wants. But he knows a VP has no such authority.

So he lays the trap. Creates this whole scene in his house of all this classified/now unclassified material that reminds of the "orgy of evidence" in the movie "Minority Report" and the salivating fake news jumps all over it, inventing reasons for people to be upset about this. Gets them to REALLY dig into this story hard and then...

Boom. Oh look. Biden has that kind of stuff too. Only...he wasn't actually allowed to have that stuff the way Trump was.

The scrambling of the media to spin this story is hilarious. The dug their own grave on this one. Trump got them again. Brilliant.