Two Maryland voters challenged the registration of women, arguing the Nineteenth Amendment had been invalidly ratified and that in any event a state could not be deprived of control over its electorate without its consent. Justice Brandeis's unanimous opinion rejected both arguments. The amending process of Article V does not require state consent to changes in state suffrage rules — the Fifteenth Amendment had already settled that — and the amendment's ratification by three-fourths of the states was regular on its face; the Court would not go behind official certifications. Leser cemented the constitutional standing of women's suffrage and remains a leading precedent on the finality of the Article V ratification process.