Along with the armed forces, the
president also directs U.S. foreign policy. Through the Department of State and the Department of Defense, the president is responsible for the protection
of Americans abroad and of foreign nationals in the United States.
The president decides whether to recognize new nations and new
governments, and negotiates treaties with other nations, which
become binding on the United States when approved by two-thirds
vote of the Senate.
The president is the
chief
executive of the United
States, putting him at the head of the executive branch of the
government, whose responsibility is to "take care that the laws be
faithfully executed." The executive branch has over
four
million employees, including members of the
military.
Presidents make numerous executive
branch appointments: an incoming president may make up to 6,000
before he takes office and 8,000 more during his term.
Ambassadors, members of the Cabinet,
and other federal officers, are all appointed by a president with
the "advice and
consent" of a majority of
the Senate. Appointments made while the Senate is in recess are
temporary and expire at the end of the next session of the
Senate. ' WIKIPEDIA