The American Constitution establishes three United States powers. The judiciary, which judges and enforces the laws. Legislative power, which creates laws. And the executive power, which is commanded by the leader of the nation, the president.
The president acts as the chief executive officer and has the power to set up a government team and dictate the nation's course. The president acts in the internal and external environment of the country. In the internal environment, the president makes political and economic decisions that must be valued for the well-being of society. In the external environment the president decides questions of representation, foreign relations and international trade.