I can see a judge doing something like that to a specific congressman, but to allow the DOJ/Executive Branch to just obtain phone records of just anyone who just happens to be in the Cloak Room....seems pretty broad.
If you were a Congressman, what would be your legal response be?
I'm not a lawyer, but from what has been discussed on this matter so far makes it appear that the Attorney General can approve the subpoena for the phone records - the didn't have to go to a judge for that.