I am trying to break it down too. I have suspicions.
D = Devin
4 = ?
NNuz = Nunes
X4AA = Flight from Milwaukee to Chicago 7:39 pm July 23, 2017
JjxS = ?
https://flightaware.com/live/flight/X4AA
Keep an eye on John Solomon's twitter… I think he is gonna drop something big soon.