I was blinded for a few moments that the initial response by Jeff Sessions, in that trove of letters you posted, was written on NOVEMBER 22nd. The date of JFK assassination. Just was.
Next, I was blinded by the language of Jeff Sessions in that initial letter, wherein Sessions “requests” investigation into HRC, Comey style. Not sure about an Attorney General of the United States using the term “I request”.
Where is the term, “I direct....”?
Does the DOJ hear a request and consider it “OPTIONAL”? Therefore, a request can possibly be ignored entirely or so placed on the back burner that no one gets nailed, ever, for anything?
There is a fine Old Navy tradition called "A Request With the Effect of a Direct Order" that covers the actions of a senior officer (particularly a Flag Officer or Admiral) in issuing verbal orders to subordinates phrased as requests.
Needless to say, if an Admiral says, "I would appreciate if you would move that aircraft/ship to a different location", that aircraft/ship is going to be moving very, very quickly indeed.
I don't believe that Mister Sessions has served in the Navy but he most assuredly understands and uses that tactic.
JMHO