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Executing Foster V. Neilson: Enforcing Treaties Against The States, David Sloss

David Sloss

In Medellin v. Texas, the Supreme Court held that Article 94 of the United Nations Charter is non-self-executing. In so holding, the Court applied the “intent-based” doctrine of self-execution. Conventional wisdom traces that doctrine to an 1829 opinion by Chief Justice Marshall in Foster v. Neilson. The conventional wisdom is wrong. Marshall applied the “two-step” approach to self-execution, not the modern intent-based doctrine. The two-step approach distinguishes clearly between questions of international and domestic law. International law governs the content and scope of the United States’ treaty obligations. Domestic law determines which government officers are responsible for domestic treaty implementation. …