A general observation:
Scroll back to list of [BO] interviews in Q-Post #1989:
Why would Huber need to interview him yet? He's already got some material to work with. If Huber needs more, he can get it.
So, if Huber has the info he needs, then Horowitz already has it too. Even though Sessions is recused from directly acting (at least for now), that doesn't mean that he can't see the same info, does it?
Now look at Q-Post #2044.
:D