Whether Congress could validly require that the Eighteenth Amendment be ratified within seven years of its proposal.
Holding
Yes. Article V implicitly requires ratification within a reasonable time, and Congress may set a definite, reasonable period for ratification.
Reasoning
Article V does not expressly state whether a proposed amendment remains open for ratification indefinitely or whether Congress may impose a deadline. But the Court held that constitutional meaning includes necessary implications as well as express terms.
The structure of Article V indicates that proposal and ratification are connected stages of one constitutional undertaking, not unrelated acts that may be separated by generations. Amendments are proposed when a present necessity is perceived, which implies that the States should consider and resolve the proposal within a reasonably prompt period.
Ratification must reflect a sufficiently contemporaneous expression of the people's will in three-fourths of the States. Ratifications scattered over a very long period would not reliably show that the people of the country, at roughly the same time, supported the amendment.
The contrary position would leave old, partially ratified proposals perpetually pending, allowing ratifications by a present or future generation to combine with approvals cast by representatives of long-past generations. The Court considered that result inconsistent with Article V's purpose.
Congress has broad authority over the mechanics of proposing amendments, including the authority to select the mode of ratification. Setting a reasonable deadline is a subsidiary procedural detail incident to that authority. Seven years was reasonable, particularly because prior successful amendments had been ratified within four years. ამიტომ the seven-year condition did not invalidate the Eighteenth Amendment.