Life in prison with no hope of parole ever. Preferrably a military prison like GITMO.
I prefer execution, immediately, but that likely is not going to happen.
But, a public HANGING such as occurred in the Lincoln assassination that took place would be a big deterrent from this kind of criminality from taking place anytime soon.
HOWEVER,
ALL who took part in this COUP and overthrow of our very Democracy and the cancellation of all the millions of the people who comprise this nation, should not go unpunished.. THEY ALL were in on it and they ALL must pay the price... Otherwise we encourage this to happen over and over again... There is a steep price to pay for insurrection and treason..
George Washington and U.S. Grant would HANG THEM all. Women, men, all....
They knew what they were doing was wrong and illegal or it would not have been directed and instructions given in secrecy.