In 1987, I published an overly long article in the Yale Law Journal entitled Of Sovereignty and Federalism. In it, I advanced a converse-1983 model of federalism-a model that highlighted the ways in which state laws can provide remedies when federal officials violate federal constitutional rights. For example, prior to the 1971 landmark of Bivens v. Six Unknown Federal Agents, citizens whose Fourth Amendment rights had been violated by federal officers had no clear federal cause of action; but state trespass law often provided a remedy, and enabled citizens to recover when their persons, houses, papers, [or] effects had been unreasonably searched or seized by federal officials. The point, I suggested, was generalizable. State remedies c...