Amendment #26

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 power to enforce this article by appropriate legislation.

The twenty sixth amendment states that you cannot be denied the right to vote if you are above the age of eighteen.

The image above shows how people who are over the age of eighteen are able to vote and cannot be denied the right to vote.