The Presidency. Chapter-13. The President’s Roles. Chief of State Ceremonial head of the government Chief Executive Constitutionally the given the executive power of the United States Chief Administrator Head of governmental machines – employees 3 million people Chief Diplomat
Followed by Commerce, Labor, Health, Transportation, Energy, Education, Veteran Affairs and Homeland Security
In either case, the President may resume the powers and duties of the office by informing Congress that no inability exists. The Vice President and a majority of the cabinet may challenge the President and Congress has 21 days to decide.
Remember however, that the Vice President is only a heartbeat away from the presidency. Eight Presidents have died in office and one was forced to resign.