Answer;
-acting as commander in chief of the armed forces
-acting as the executive for departments overseeing the United States Postal Service, the CIA and the Social Security Administration
-acting as executive of the office in charge of setting scientific research standards
Explanation;
-The role of the president as outlined by the constitution includes;
-Chief of state; which means the president is the head of the government and the symbol of all people.
-The president is the chief executive; vested by the constitution with broad executive powers.
-He/she is the chief administrator; whic means he is in charge of the executive branch of the federal government.
-Other roles involves; chief diplomat, commander in chief, chief legistlator, party chief and also chief citizen.