What is the minimum age requirement to vote in federal elections?

The minimum age requirement to vote in federal elections in the United States is 18 years old. This standard was established by the 26th Amendment to the U.S. Constitution, which was ratified in 1971. The amendment aimed to ensure that young citizens who are old enough to participate in the draft and serve in the military should also have the right to vote. As a result, individuals who are 18 years of age or older are granted the constitutional right to cast their ballots in federal elections, including those for President, Vice President, and members of Congress.