The Executive Branch
The power of the executive branch is vested in the President, who also serves as Commander in Chief of the Armed Forces. The President appoints the Cabinet and oversees the various agencies and departments of the federal government.
In order for a person to become President, he or she must be a natural-born citizen of the United States, be at least 35 years of age, and have resided in the United States for at least 14 years. Once elected, the President serves a term of four years and may be re-elected only once.
The official US President website: www.whitehouse.gov