[PghBaldy]

To presume he did not have the ability to do so while POTUS means faceless, nameless, unelected employees had more power to declassify than he, the Commander-In-Chief, did.

[itsahoot]

means faceless, nameless, unelected employees had more power to declassify than he, the Commander-In-Chief

He can declassify as much as he wants doesn't mean they will release them. Ever notice how often the administration ignores court orders to produce documents? The President would have had to use the military to storm the archives and produce them and he did not actually control the military, no matter what the Constitution says.