Which position in government represents the head of the judiciary?

The position that represents the head of the judiciary is the Chief Justice. This role is crucial within the judicial system, as the Chief Justice oversees the administration of the court system and leads the Supreme Court. The Chief Justice's responsibilities include presiding over court proceedings, especially in cases before the Supreme Court, and ensuring that judicial decisions align with constitutional principles.

The Speaker of the House, although an important legislative leader, does not have any authoritative role over the judiciary. The Vice President's primary responsibility is to support the President and preside over the Senate, which does not involve judicial authority. Similarly, the President Pro Tempore is a Senate leadership position focused on legislative functions and does not pertain to the judicial branch. Thus, the Chief Justice is distinctly recognized as the head of the judiciary, confirming why this is the correct answer.