Which title is NOT part of the roles of the president?

The title that is not part of the roles traditionally assigned to the president is "Chief of Civil Rights." While the president plays an essential role in advocating for civil rights and can influence legislation and policy regarding civil rights issues, this title is not officially recognized as one of the major roles or responsibilities of the presidency.

In contrast, the other titles reflect core responsibilities of the president. The title "Chief Commander" likely refers to the president's role as Commander-in-Chief of the armed forces, a clear constitutional duty. The "Chief Executive" role emphasizes the president’s responsibility to enforce federal laws, manage the executive branch, and oversee government operations. Lastly, as "Chief Diplomat," the president is responsible for shaping foreign policy, negotiating treaties, and representing the United States in international relations. Each of these titles signifies an established role that encompasses significant powers and duties, underscoring the president's position as a key leader in governance.