The Twenty-sixth Amendment to the U.S. Constitution lowered the voting age to 18.
Hope this helps,
Davinia.
The answer to this is the 26 amdement
History of amendment
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 the power to enforce this article by appropriate legislation.
“Section 1. 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. Section 2. “The Congress shall have the power to enforce this article by appropriate legislation.” The 26th Amendment Defined.
