Basically they'll try to impeach arguing line by line of declas jeopardized national security. My take was always that DECLAS authority was given to Barr to insulate POTUS from impeachment. Maybe Barr held it up and POTUS said, "Fuck it." They can't impeach further than the house.
"LOCK HER UP!"
POTUS: (Haha. Nope. Hangar.. HANG HER.)
God bless you and your family.