I see where Antifa and BLM are calling for the burning of Congress and SCOTUS over replacing RBG. They should remember a little factoid, to wit:
The Third Infantry Regiment (Old Guard) is mostly known for guarding the Tomb of the Unknown Soldier and performing ceremonial duties at the White House and Arlington National Cemetery. However, they are a fully trained, fully armed and equipped infantry regiment filled with motivated hard chargers. They will have something to say about burning down Congress or SCOTUS or the White House. They are fully capable of putting down an insurrection.
It would not be wise to provoke their use as infantry. A little reminder for the fools at Antifa and BLM.
And since it is Washington, DC, posse comitatus prohibitions do not apply. Trump does not need to even invoke the insurrection act. He can just order the Old Guard to saddle up in full battle rattle and stand by.
When the American Indian Movement occupied the Bureau of Indian Affairs HQ in Washington, they strutted about showing Winchesters and such and declaring they would never move until certain things were fixed to their liking. Nixon, being a clever sort did not call out the Old Guard. He just called in the Rangers to look things over. The rangers observed and allowed themselves to be seen observing. Ranger patches in full view.
Seeing that, the protesters held a quick meeting, declared “victory”, and left for home. Rangers do not play well with others. If you want to influence hearts and minds, call the Green Beret. If all you want to do is break sh*t and hurt people, call the Rangers.
This of course would be more of a job for the Old Guard than the Rangers. The Old Guard are expressly allowed to defend the capital with no martial law being declared. Since DC is a federal city most laws are a shade different there. Besides, the Rangers are currently employed elsewhere.