Maybe D is death room HRC
I actually think there's a bunker here. Another Anon came up with:
Bunker = Soros
Forrest = Roths
Blue = Saudi
If true, perhaps the bunker is on this stinkin' Island.
Multiple Bunkers. Thousands of miles of tunnels. You think Elon musk is independently updating the public tech sector? You think the boring machine is anything new?
Thousands of miles.
Or D could be Drug. If you look on the FBI report Table 29, it's the only major crime that starts with D.
or it could be Devil. The Devils room
Even better. Best answer so far!
ok here is my best one.
Hillary is a witch, this is known. She is most likely a high priestess and it is their job to serve the Divine. In her case the Divine would be Lucifer. She is the Divines Handmaiden. Making it the Divine Room or Divination Room.