fining via Inherent Contempt is a first step

[NewJeffCT]

but, when Mnuchin, Ross, the Acting DNI, etc don't pay their fines, are they going to take the next step of tossing them in the House jail?

Sure, it hasn't been used in 80 years, so may be dusty and moldy, but it's certainly better than the Concentration Camps on the border.