As pointed out in the latest ruling by the 11th District, this classification/declassification thing is a red herring.
The point is: The Presidential Records Act.
The documents were not Trump’s to take, classified or not. Taking any such documents, classified or not, is a violation of the Presidential Records Act. Period. This is typical of Hannity and Fox (and Trump, of course): distract with a nonsense point that is irrelevant. Repeat it until the Fox audience has something to cling onto, Hannity (and Fox) continues to rake in the money, and Trump gets his air time. Nifty, eh?
A side point: If Trump declassified these documents, then, hey, let’s see them. They’re declassified, right? Gimme some of those classified documents. On the other hand, Trump’s attorneys see this point, among other factors, and are careful in court not to claim things were declassified. National security and such.