Presidential institutions refer to the structures and systems that support the functioning of a presidential government. These institutions typically include the office of the President, the executive branch, and various agencies that help implement laws and policies. The President often serves as both the head of state and the head of government, making key decisions and representing the nation. In many countries, presidential institutions are designed to ensure a separation of powers among the executive, legislative, and judicial branches. This separation helps prevent any one branch from becoming too powerful. Additionally, these institutions often include mechanisms for checks and balances, allowing for oversight and accountability within the government.