Every theory in the series meets Article VI, which makes federal law supreme, and loses. The episode traces the line from McCulloch v. Maryland through the Nullification Crisis, Ableman v. Booth, Cooper v. Aaron and United States v. Nye County. It ends by noting that legal supremacy depends on institutions to enforce it, a gap seen at Bunkerville.
Scholars known as departmentalists contest Cooper v. Aaron's claim that the Supreme Court's interpretation binds state officers, though no version licenses sheriff-led nullification. Critics note that sanctuary policies and Second Amendment sanctuaries rest on the same footing, and the line between lawful non-cooperation and obstruction is contested at its edges.



