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  1. A presidential system, or single executive system, is a form of government in which a head of government, typically with the title of president, leads an executive branch that is separate from the legislative branch in systems that use separation of powers.

  2. In the United States, politics functions within a framework of a constitutional federal republic and presidential system, with three distinct branches that share powers: the U.S. Congress which forms the legislative branch, a bicameral legislative body comprising the House of Representatives and the Senate; the executive branch ...

  3. 10 de mai. de 2024 · The term presidency of the United States of America refers to the chief executive office of the United States. In contrast to many countries with parliamentary forms of government, where the office is mainly ceremonial, in the U.S. the president is vested with great authority and is arguably the most powerful elected official in the ...

  4. Há 4 dias · president. government official. Written and fact-checked by. The Editors of Encyclopaedia Britannica. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.