Really? Name a single member of the trump administration who is in jail, muchless senior. Why make stuff up?
https://www.bbc.co.uk/news/world-us-canada-47263226 : former election campaign chief Paul Manafort is the big one.
https://www.bbc.co.uk/news/world-us-canada-46347887 George Papadopoulos received a short prison sentence for lying to the FBI.
The following associates are convicted but not yet sentenced, presumably while they cooperate with investigators:
Rick Gates has pled guilty to conspiracy against the United States (!)
Michael Cohen has been allowed medical leave before serving his sentence: https://www.nytimes.com/2019/02/20/nyregion/michael-cohen-pr...
Michael Flynn (who was actually, briefly, a member of the Trump administration) has pled guilty to lying to the FBI.