I seriously doubt there is any such thing left in AmeriKa as actual "justice," but we must not lose sight of the actual facts (this was the point of the news show and commentary):
There IS no statute of limitations on Treason. And presidential 'immunity' cannot extend to "making war" on the States and the people. If a president can kill, usurp, or destroy any successor, then there is no Rule of Law left - only Dictatorship for Life.
"Immunity" does not include Treason, and the fact that other traitors failed to do their duty (and that includes seating a senile fraud, and covering up the genuine conspiracy, is no excuse.