Presidential system

Definition

A presidential system is a form of government in which the president is both the head of state and the head of government, and is elected independently of the legislature. This system contrasts with parliamentary systems, where the executive branch derives its legitimacy from and is accountable to the legislature.

Related terms

Separation of Powers: The division of government responsibilities into distinct branches to limit any one branch from exercising the core functions of another.

Executive Branch: The part of government responsible for implementing and enforcing laws, commonly headed by the president or prime minister.

Veto Power: The ability of an executive to prevent passage of a bill by refusing to sign it into law