Technology

The President is the Commander in Chief of the United States military. His toady is the Sectary of Defense. And generals are being put into positions where they must violate their oaths or resign. (Presumably. We've had several prominent resignations — often just before apparently illegal military operations that would've been under their control.) SecDef refuses to promote females and people of color into high ranks. It's a long process because the system is designed to make this difficult, so the job isn't complete, but he had made significant progress.

To be fair, there are things he doesn't have direct control over, but those things are largely under the control of his lackeys because trump nominates them and they serve temporarily until the Senate confirms them. But Republicans control the Senate and only the absolute worst people or those with some sense of shame aren't confirmed.

Trump is the chief executive, so any government function that isn't directed by the judiciary or Congress is under his leadership. Every federal enforcement branch: armed forces, fbi, CIA, regulatory bodies, education, environment, is all under his control directly or indirectly.