The Senate can hold people in contempt with a 50% vote. So they could do something to reign in the fascists starting January, but I'm not holding my breath. And that's still a long road.
It's my understanding they can detain under the inherent contempt power, it's been reported [0] that the House has a jail that can be readied if needed.
That opens a can of worms that you're never going to close.
Maybe this is such an emergency that it's worth the risk. But the risk is extremely high; if you do it to them, even with the best of reasons, they are going to do it back to you for any reason they can think of.
Hey remember when we had a 2 (plus?) Year trial over whether or not the president had sex with someone other than his wife? Something about family values or morality or whatever they said at the time?