That's not how "declassification" works...for the thousandth time. There is an official legal process, as there should be. Trump is such a bad and obvious liar.
It's like he calls "backboard" after the shot and then argues about having the right to call backboard. You have to "declassify" before you take them from the WH. It's a pretty simple rule. And the POTUS does not have the right to claim anything he wants is his property. That would be rather stupid.