The Supreme Court held 7–2 that the statute represented a valid use of Congressional authority under the
Spending Clause and that the statute did not infringe upon the rights of the states. The Court established a five-point rule for considering the constitutionality of expenditure cuts of this type: • The spending must promote "the
general welfare." • The condition must be unambiguous. • The condition should relate "to the federal interest in particular national projects or programs." • The condition imposed on the states must not, in itself, be unconstitutional. • The condition must not be coercive. Writing for the majority, Chief Justice
William Rehnquist noted that the National Minimum Drinking Age Act clearly met the first three restrictions, leaving only the latter two restrictions worthy of consideration. He wrote that Congress did not violate the
Tenth Amendment because it merely exercised its right to control federal spending. He further argued that Congress did not coerce the states because it had cut only a small percentage of federal funding. Congress thus applied pressure, but not irresistible pressure. As such, he held that Congress had acted under proper authority and the law stood.
Dissents Justices
O'Connor and
Brennan filed separate dissents. O'Connor agreed that Congress may attach conditions to the receipt of federal funds and that the
Twenty-First Amendment gives states authority over laws relating to the consumption of alcohol. However, she wrote that the attachment of any conditions on the states must be "reasonably related to the expenditure of funds." She disagreed with the court's conclusion that withholding federal highway funds was reasonably related to deterring drunken driving and drinking by minors and young adults. She argued that the condition was both overinclusive and underinclusive: it prevented teenagers from drinking when they are not going to drive on federal and federally funded highways, and also did not attempt to remedy the overall problem of drunken driving on federal or federally funded highways. She therefore would have struck down the law, viewing the relation between condition and spending as too attenuated: "establishment of a minimum drinking age of 21 is not sufficiently related to interstate highway construction to justify so conditioning funds appropriated for that purpose." ==See also==