What is the term limit for a president in the United States?

The term limit for a president in the United States is set at two four-year terms. This regulation is established by the 22nd Amendment to the U.S. Constitution, which was ratified in 1951. The rationale behind this amendment was to prevent any individual from holding the presidency for an excessively long time, thereby promoting a rotation of political leadership and preventing the potential for tyranny or the concentration of power.

This amendment specifically states that no person can be elected to the office of the President more than twice, ensuring that presidents are held accountable to the electorate at regular intervals and encouraging fresh ideas and policies to emerge with each new administration. Therefore, the correct answer highlights the balance between stability in leadership and the democratic principle of regular electoral change.