The office has multiple levels of staff and advisers who help the president in many areas.
Explanation:
The Executive Office of the President is responsible for activities varying from connecting the President to the American people efficiently to the advancement of American commercial interests overseas. It was started by the then President Franklin D. Roosevelt in 1939 to help the president govern the country effectively. The Chief of Staff of the White House manages the EOP and it has historically hosted many closest aides and advisors of the President of USA.
