Yes!
It was Congress who installed the FBI, and along with that came their congressional oversight.
I know they can not prosecute, but I believe they can jail a witness for contempt of congress. Maybe it takes a hard to get majority of the Committee from the opposition party, I don’t know but they all look like comedians at the moment.
The picking and choosing of what laws are enforced and are not enforced has been a scandal against the (quote) “Rule of Law”. Same for defying that other law... the Logan Act. They throw that around on both sides of the aisle like it was so much water and it’s made into a JOKE, because it’s them. If it were one of us, Oooo, maybe frog marched?
We still have today, increasingly, a Two Tier Justice.
Even that takes a referral to the DOJ. When Holder was AG, he refused to put himself in jail. I suggest a law that has a federal judge right there in the hearing room, and a federal marshall to take the witness into immediate custody then and there. Just have to wait til Pelosi is gone though. Unless she wants to do it to Republicans.