A presidential republic is a form of government where the president is both the head of state and the head of government. In this system, the president is elected independently of the legislature, which means the executive and legislative branches are separate and have distinct powers. This separation of powers is designed to provide a system of checks and balances, preventing any one branch from becoming too powerful.
In a presidential republic, the president typically has significant authority, including the power to veto legislation, appoint key officials, and manage foreign policy. The legislature, on the other hand, is responsible for making laws and can override a presidential veto with a sufficient majority.
This form of government is common in countries like the United States, Brazil, and the Philippines. It contrasts with parliamentary systems, where the head of government (often a prime minister) is typically a member of the legislature and relies on its support to remain in power.