Nunes has been subpoenaing the DOJ which is a separate branch of the government (executive), so not sure that would stop it. I think the bigger question is would any judge respond to it. This Congress needs to build its enforcement arm back up, as allowed by the Constitution and previously utilized in decades (if not centuries) past, to give their demands and investigation results more teeth. Right now everyone seems stuck waiting for the slumbering AG to awake from under his tree and find his way back home.
Uh, why can’t Nunes just visit Judge Roberts in his chambers for a chit-chat?