Which is the same as saying there's no standard at all.
I was referring to Madison’s standards. Neo-comm standards are irrelevant.
There is a standard.
Controversies between states and the federal government are, per article 3 of the Constitution to be submitted for resolution to the Supreme Court.
Which the rebels didn’t do, as they knew they had no case. They didn’t want resolution, they wanted war.
And they got a war. And they lost it.