I don’t think that Trump is easy to control. The Republican party in 2016 totally failed to do so, and so did members of his administration (both the extremists and the ones trying to be a voice of reason). He’s not interested in the day-to-day business of governing but he is interested in power and I think he has good intuition about people who would try to limit his power or have power over him. He uses people; people don’t use him.