Here’s a good link on one story and how Sessions spoke about this issue. There is only one reason the DOJ won’t release document to the congress, they are part of a grand jury investigation. Otherwise they have to release. I actually think from my count there are 3-4 Grand Juries involved in all this deep state stuff.
in other words it your opinion there are 3-4 grand juries based on big leaps of faith...there are plenty of reasons doj won’t release documents to congress..the reasons they used in the past turned out to be not true...