Jeff Sessions should be called "The Artful Dodger." He is creating a privilege to avoid answering questions. There is no privilege protecting him, what he is doing is creating a dodge to avoid accountability.
This is a Trump strategy. When the facts aren't there, or a protection doesn't exist, then create one. Make it sound good, make it sound official and hide behind it and hope nobody notices.
Today, Jeff Sessions did just that...he created a protection that doesn't exist, he made it sound good, and he made it look official. The question is...
Will he get away with it?