THE NEW YORK TIMES ARTICLE W/TIMELINE. (FEEL FREE TO CONTRADICT IT)
The only thing you need to tell that know it all guy in the office about this event is that Joe Biden was NOT the President at the time so he could not have "declassified" the documents EVEN if he had known they were there.
That superpower belongs to the President of the United States. Someone like....Donald Trump. The rest of these articles are subversion of the truth (but you knew that already)