Which constitutional amendment limits the President to two terms?

The 22nd Amendment to the United States Constitution specifically addresses presidential terms, establishing a limit of two elected terms for the president. This amendment was ratified in 1951, largely as a response to Franklin D. Roosevelt's four consecutive terms in office, which raised concerns about the potential for the consolidation of power and the risk of a president serving indefinitely. By instituting this two-term limit, the amendment helps to ensure a regular turnover in leadership, thereby fostering democratic governance and preventing any one individual from holding too much power for an extended period.

The other amendments listed do not pertain to presidential term limits. The 20th Amendment deals with the terms of the president and Congress, establishing when they begin and end, while the 25th Amendment outlines the procedures for presidential succession and dealing with presidential disabilities. The 18th Amendment, on the other hand, established Prohibition, which is unrelated to presidential terms. Thus, the 22nd Amendment is uniquely focused on limiting the tenure of the president in office.