Who is The President from Democracy in America and what is their importance?

The President of the United States is the head of the executive branch of the federal government. His role is to enforce the national laws written by Congress. The powers of the President are defined by the Federal Constitution. The President of the United States is the commander-in-chief of the army; he has the power to either sign into law or veto the bills passed by both house of Congress, to grant pardons and reprieves, and to make treaties and appoint federal officers, ambassadors and judges with consent of the Congress. The President of the United States is an elected official and is subject to the laws of the country.