Ratified July 1, 1971
Lowered the voting age from 21 to 18 nationwide. Driven largely by the Vietnam War-era argument — captured in the slogan "old enough to fight, old enough to vote" — that draft-age young men who could be sent to war deserved a say in who sent them.
The right of citizens of the United States, who are eighteen years of age or older, to vote shall not be denied or abridged by the United States or by any State on account of age.
The Congress shall have power to enforce this article by appropriate legislation.