Presidential Systems Presidential systems represent one model for organizing the national executive. Although national executives are a relatively recent concept, every nation has an executive or government, at least in the strictest sense of the term....

A head of state, whether bearing the title president, king or queen, or some other, may carry a wide variety of powers. Presidential government is a system which gives a strong role to the head of the executive who participates fully in its actual...

A presidential system, also called a congressional system, is a system of government where an executive branch exists and presides (hence the term) separately from the legislature, to which it is not accountable and which cannot in normal circumstances...