Start by getting rid of the lifer bureaucrats. Nobody elected them, after all, and for the most part they're parasites.
These un-elected bureaucrats, the faceless horde, the Deep State, the swamp if you will, the little despots drunk with power and the ability to screw with people’s lives, have risen up. They believe they are the only legitimate government of the United States. Presidents come and go, but they are forever. They’re striking back at a president that represents what they see as the ‘peasants’, the hayseeds, the fly-over states, deplorables who dare to question their authority, competency, and legitimacy.
That's a succinct summation of the long-time "business as usual" situation, so obviously if one plans to drain the swamp, that's Ground Zero.