How old must a person be to run for President of the United States?

To be eligible for the presidency of the United States, an individual must be at least thirty-five years old. This requirement is established by Article II, Section 1 of the U.S. Constitution. In addition to the age requirement, a presidential candidate must be a natural-born citizen of the United States and have been a resident for at least fourteen years. This age requirement ensures that candidates possess a certain level of maturity and experience, which is deemed necessary for the high responsibilities associated with leading the country.