Thank you.
I found this, William Blount, U.S. Senator from Tennessee, was expelled from the Senate.
Impeached July 7, 1797, on charges of conspiring to assist in Great Britain’s attempt to seize Spanish-controlled territories in modern-day Florida and Louisiana.
Senate trial: December 17, 1798–January 14, 1799
Charges dismissed for want of jurisdiction; Blount had been expelled from the U.S. Senate before his trial.
https://history.house.gov/Institution/Impeachment/Impeachment-List/
So it does look like it can be done but will it?
This includes Schitt, No-Nads, Mahoney-Baloney, and Engle, all who had a hand in this COUP.
Oh, Yippee!!! Hope we can do it. Dozens of them!