The act of state doctrine is a court-made (common law) doctrine that prohibits U.S. courts from judging the validity of the official acts of a foreign country that take place within that foreign country's borders.
The act of state doctrine is a principle in U.S. law that prevents American courts from questioning the validity of public acts performed by a recognized foreign sovereign within its own territory. This doctrine is based on the principles of sovereignty, comity, and the recognition that courts should not interfere with the executive branch's conduct of foreign affairs. While the doctrine is a federal common law principle, it would be applicable in Wyoming courts when a case involves questioning the acts of a foreign government. Wyoming courts, like federal and other state courts, would typically defer to the act of state doctrine in relevant cases, acknowledging the sovereignty of foreign nations and avoiding judicial interference in foreign relations. However, the application of the doctrine is subject to certain exceptions, such as when a clear violation of international law is present.