What is the minimum age requirement to be a Senator?

The minimum age requirement to serve as a Senator in the United States is indeed 30 years old. This requirement is established in the U.S. Constitution, specifically in Article I, Section 3, which outlines the qualifications for holding the office of Senator. In addition to the age requirement, a Senator must also have been a citizen of the United States for at least nine years and must be an inhabitant of the state from which they are elected. This constitutional stipulation reflects the framers' intent to ensure that Senators possess a certain level of maturity and experience, as they serve longer terms and have substantial responsibilities in shaping federal legislation.