definition of president of the united states of america
President of the United States The President of the United States (POTUS /ˈpoʊtəs/ POH-təs)[note 2] is the head of state and head of government of the United States of America. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.
Powers of the President of the United States The President of the United States has numerous powers, including those explicitly granted by Article II of the United States Constitution.
President of the United States Donald Trump of New York is the 45th and current president. He assumed office on January 20, 2017.
Presidential system A presidential system is a democratic and republican system of government where a head of government leads an executive branch that is separate from the legislative branch. This head of government is in most cases also the head of state, which is called president.