6-3 with Thomas, Alito & Gorsuch dissenting

I should be unanimous, it's what the constitution says. If you don't like it you need to go through the amendment process.

The supreme Court ruled that South Carolina could not secede from the Union because the Constitution was merely a continuation of the agreements under the articles of confederation even though all states had to withdraw from the confederation to get into the union.

After that bit of logic, nothing the supreme Court decides would surprise me