Understanding anything is possible, you could be right. I’ll reserve judgment until the appellate court rules.
Still, I will hold to the Constitution and precedents I have read in the past that said this was legal. The intent was always to protect congressional work but never to cover up illegal wrong doing or illegal activities. The US Post Office scandal in the House would probably back that up although I did not look it up.
This sort of thing always brings out the argument between the executive and legislative branches and it is not always a party issue. Bush was stupid, IMHO, to not prosecute the Democrats White House vandalism when he took office, but he didn’t. Just another example of Democrats believing they will not be held accountable no matter what they do.