What is the maximum age to be elected President of the United States?

The maximum age to be elected President of the United States is indeed undefined, as there is no upper age limit specified in the Constitution. The qualifications for presidential candidates outlined in Article II, Section 1, simply state that a candidate must be at least 35 years old, a natural-born citizen, and a U.S. resident for at least 14 years. This means that while there is a minimum age requirement, there is no maximum age restriction, allowing individuals of any age beyond 35 to run for and potentially be elected to the presidency. This detail highlights the freedom of eligibility in presidential elections, focusing instead on the capabilities and qualifications of the candidates rather than their age.