Authors:

Under the doctrine of separation of powers, the manner in which the president personally exercises his assigned executive powers is not subject to questioning by another branch of government.

Nixon, Richard M. (1975). “Public Papers of the Presidents of the United States: Richard M. Nixon, 1973”, p.185, Best Books on
Under the doctrine of separation of powers, the manner in which the president personally exercises his assigned executive powers is not subject to questioning by another branch of government.