The president is the leader of the executive branch. He or she signs and enforces laws. The president is the commander in chief of the military. The president represents the United States to other countries. He or she signs treaties with other countries. The president is in charge of the executive branch.
Section "Learn and Explore" uses official instructions and media files of US Citizenship and Immigration Services, US National Museum of American History, The Smithsonian Institution and other governmental and public organization.