"Energy in the executive is a leading character in the definition of good government. It is essential to the protection of the community against foreign attacks; it is not less essential to the steady administration of the laws; to the protection of property against those irregular and high-handed combinations which sometimes interrupt the ordinary course of justice; to the security of liberty against the enterprises and assaults of ambition, of faction, and of anarchy."

– Alexander Hamilton, Federalist No. 70, "The Executive Department Further Considered," Independent Journal, March 15, 1788; Rossiter pp. 421-422
 
 
 
 
"What is to be the consequence, in case the Congress shall misconstrue this part [the necessary and proper clause] of the Constitution and  exercise powers not warranted by its true meaning, I answer the same as if they should misconstrue or enlarge any other power vested in them...the success of the usurpation will depend on the executive and judiciary departments, which are to expound and give effect to the legislative acts; and in a last resort a remedy must be obtained from the people, who can by the elections of more faithful representatives, annul the acts of the usurpers."

-- James Madison, Federalist No. 44


 
 
"The executive branch of this government never has, nor will suffer, while I preside, any improper conduct of its officers to escape with impunity."

-- George Washington, letter to Gouverneur Morris, 1795

 
 
"What is to be the consequence, in case the Congress shall misconstrue this part [the necessary and proper clause] of the Constitution and exercise powers not warranted by its true meaning, I answer the same as if they should misconstrue or enlarge any other power vested in them ... the success of the usurpation will depend on the executive and judiciary departments, which are to expound and give effect to the legislative acts; and in a last resort a remedy must be obtained from the people, who can by the elections of more faithful representatives, annul the acts of the usurpers."

-- James Madison, Federalist No. 44, 1788