How old do citizens have to be to vote for President?

Citizens must be at least 18 years old to vote for President in the United States. This requirement is established by the 26th Amendment to the U.S. Constitution, which was ratified in 1971. It states that citizens who are 18 years of age or older cannot be denied the right to vote based on age. The rationale behind this age limit is that individuals at 18 are generally considered mature enough to participate in the democratic process and make informed decisions about leadership and governance. As a result, turning 18 is a significant milestone that allows young adults to engage in civic duties, including voting in federal elections such as the presidential election.