In their quest to control governmental power and protect individual liberty, the Framers separated federal power among three branches of government. As Justice Gorsuch notes, they also “went to great lengths to make lawmaking difficult,” requiring consent of both houses of Congress and the president, or legislative supermajorities. The veto was the executive branch’s only role in the legislative process.
That was deliberate. Justice Gorsuch quotes Montesquieu, who was quoted by James Madison in Federalist No. 47: “There can be no liberty where the legislative and executive powers are united in the same person, or body of magistrates.”
For more than a century after its creation, the high court actively policed the separation of executive and legislative powers, requiring Congress to make the hard, politically risky policy decisions and permitting only limited delegation of operational details. But in the 1930s, under pressure to uphold the vast delegations of the New Deal, the justices changed course and held that delegation was permissible so long as an “intelligible principle” could be discerned to govern how that power was exercised.