According to the U.S.Constitution,treaties made by the president with foreign governments and approved by two-thirds of the U.S.Senate validate inconsistent state and federal laws.

Treaties

Formal agreements between sovereign states or international organizations, binding in international law.

U.S. Constitution

The supreme law of the United States, establishing the framework of the national government and the rights of the citizens.

Inconsistent State Laws

Statutes or regulations enacted by individual states that are at odds with federal laws or the laws of other states, potentially leading to legal conflicts.