Congress may attach reasonable conditions to funds disbursed to the states without violating the Tenth Amendment. Decided June 23, 1987 (argued April 28, 1987). Opinion of the Court: William Rehnquist → go there Dissenting: Brennan, O'Connor. Applied: the Tenth Amendment → go there Applied: the Twenty-first Amendment → go there Topic: Federalism. South Dakota v. Dole, 483 U.S. 203 (1987), was a case in which the United States Supreme Court considered the limitations that the Constitution places on the authority of the United States Congress to influence state lawmaking. The Court upheld the constitutionality of a federal statute that withheld federal funds from states whose legal drinking age did not conform to federal policy. The dissent argued that the minimum drinking age condition for states to receive federal highway funds was not sufficiently related to Congress's interests in expending the funds and consequently exceeded the federal government's Article 1, Section 8 spending power. Wiki link