Both by Constitution and US laws (i.e. Militia & Insurrection Acts) our Founders fully recognized the difference between normal peacetime and "rebellion", "insurrection", "domestic violence", "invasion" or "treason".
In all cases, Lincoln's actions were supported by Congress and the full Supreme Court.
Case dismissed.
Which means what? Lincoln arrested people who disagreed with him. That the Supreme Court and the Congress went along with him is like saying the Politburo went along with Stalin.
Of course they did. People are afraid of Tyrants.