JayUtah
Penultimate Amazing
The state would have to prove, at least in its own court system, that it had a justification that agreed with both state law and the US constitution for banning Biden from the ballot.
A state supreme court ruling on a state law has plenipotentiary power. But when a state court invokes federal law to rule on the propriety of state actions, it raises a federal question that can be appealed from a state supreme court into the U.S. Supreme Court, which is what happened. The power granted to state courts to apply federal law is delegated and may be resumed upon appeal. What we're grumbling about today is not that Colorado's decision was struck down. That was a foregone conclusion. My grumble, at least, is the overreach. The Court decided that Colorado couldn't decide for everyone—fine. But it shut down any other avenue of judicial fact-finding and law-debating and punted the question to an obviously ineffectual Congress. It's a performative finding that does nothing except make it harder for any other court to apply a principle from the Constitution.