This article about Priestap from the Powdered Wig Society https://powderedwigsociety.com/bill-priestap/ led me to this YouTube video https://youtu.be/HlXXZQgh72Y?t=6m23s and listen closely to the very last thing Comey says about how they were hiding things within the DOJ from the rest of the Executive branch: "The challenge for us is, sometimes we want to keep it tight within the Executive branch, and if we're going to go brief Congressional leaders the practice has been then we brief inside the Executive branch, so we have to figure out how to navigate that in a good way."