De facto/de jure.

He's an advisor with no lawful power to fire, no lawful security clearance for the DOGE team*, no lawful authority to terminate programs.

De facto, anyone standing in his way gets pushed.

Which is why nuclear weapons teams were let go.

* unless President said so. I think the office of President can do that, but has Trump actually done so, or is this like those classified documents he refused to return?