The U.S. Supreme Court, sidestepping a major constitutional test of Congress’ treaty powers, ruled unanimously Monday that a vengeful act by a woman whose husband impregnated her best friend did not violate a federal law implementing a chemical-weapons treaty….

…Elizabeth Wydra of the Constitutional Accountability Center applauded the high court ruling, saying, “The court today refused to accept the invitation of conservatives, including Tea Party U.S. Senator Ted Cruz and Justice Scalia himself, to gut the constitutional power that gives the federal government authority to enact appropriate legislation to implement validly enacted treaties.”