It is people, and not branches of government, who run for re-election.
Executive=President Presidents serve for 4 years, with possibility of one-time reelection. His cabinet goes with him after he leaves office (They too, serve 4 years, unless he kicks them out).
executive
The president is chief of the executive branch of government.
The Executive Branch.
The President is chief executive officer of the Executive Branch.
executive branch
The executive branch is responsible for enforcing the law.
The Executive Branch.
"The Executive Branch"
The Executive Branch.
who is the change of the executive branch
The Executive Branch.