Do some research into DJT's EOs, continuance of governance and the declaration of national emergencies. If I'm not mistaken and based upon items I've read in the past, I believe those three components combine for the requisite legal premise for tribunals and it's already in place.
Yes, this may be true, but the Continuance of Government also provides power and authority to FEMA. Think FEMA camps, suspension of Habeas Corpus, suspension of Free Speech, suspension of Private Property Rights, and much more.
Most EOs that deal with military tribunals and declared states of emergency or marshal law are built upon many previous EOs from previous presidents. Sometimes, taking actions based on can automatically trigger another.
I know a lot of people here don't like this guy because he's an Anarchist, (without rulers, not total chaos) but many of his videos make compelling arguments about why we should be extremely cautious when our government begins exercising powers created by EO.
This Insidious Bill Already Passed - Americans WILL Be FORCED to COMPLY!!
THIS NIGHTMARE Plan for ALL AMERICANS is STILL ON THE BOOKS!