The restrictions mean the FBI and Justice Department control what congressional investigators may see; under what conditions they may see it; and what they may make public. The practical result is that voters remain in the dark about hugely consequential events going on in Washington.
Two recent events have served to heighten tensions: the investigation into the Trump dossier and the revelation of text messages between FBI officials Peter Strzok and Lisa Page. In both cases, the FBI, appearing to protect its own actions and prerogatives, has made congressional oversight an exercise in pulling teeth, and members of Congress are tired of it.
That frustration could be heard Wednesday in a speech from Sen. Charles Grassley, R-Iowa, chairman of the Senate Judiciary Committee.