The military courts can arrest, bring evidence, hold trials and decide guilt or innocence. BUT any defendant judged guilty can appeal to SCOTUS, those same people who wouldn’t hear any of the election cases.
I wonder if they would then show the same level of disinterest and wash their hands of it especially if the big name traitors are convicted? Or will they suddenly have an uncharacteristic curiosity and concern about the rule of law? If that happens, look out and pray. They could prove to be the ultimate heroes or villains in this movie of movies. https://www.armfor.uscourts.gov/newcaaf/home.htm
Hat tip to Blacksmith 21 for the link
Which part?
FEMA's powers under conditions of a State of Emergency (as exists right now in DC) have been well known for a few years now. If you look it up, the information is everywhere. Here is a random link. I haven't read it so it may not be the best source, but look further if you wish.
Every oath, no matter the branch of service or rank begins this way. Some further swear to obey the President (depending on rank and branch) but in an oath the order is of primary importance. If you can't fulfill the whole oath (e.g. your oath to the Constitution and the President cannot both be followed simultaneously) your oath to the first listed wins. In all cases this is the Constitution of the United States. There is also no time limit in the oath. This is an oath for life.
Any other law is irrelevant, because the Constitution IS the law. If the President acts contrary to the Constitution (for example, by stealing an election) then any oaths to that president are null and void. The oath to the constitution must be followed.
Every member of the military is oath bound to uphold the constitution against enemies foreign and domestic. A President that has been proven to break his oath to the constitution is a domestic enemy (although in Biden's case, given the fact that DC is a foreign city-state he might be a foreign enemy?). If the rest of the systems put in place by the Constitution fail to bring this domestic enemy to justice, the military has no other path to uphold their oath than to take control of the government.