The Constitution assigns the legislative power with specificity: Article I, Section 1 provides that “[a]ll legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.” This legislative vesting clause is not merely an allocation of institutional competence; it identifies the making of generally applicable rules of private conduct as a power that the elected legislature must exercise if the system of representative accountability is to function and the rule of law is to be maintained.

Congress, the most representative branch of government, is supposed to be the principal institution through which the sovereign people’s consent is translated into laws that secure their rights and provide for their safety and happiness. Laws are then executed and adjudged by separate branches of government, the executive and judicial branches, respectively. In Federalist 47, James Madison called the concentration of legislative, executive, and judicial power “in the same hands” the very definition of tyranny. The auxiliary precautions of bicameralism, presentment, and staggered elections were designed to reinforce, not replace, the primary dependence on the people. That dependence is meaningful only if Congress itself resolves the principal questions of policy.

The maxim delegata potestas non potest delegari—that a delegated power may not be further delegated—supplies a traditional common law expression of the same structural commitment. Early judicial decisions treated the maxim as reinforcing the legislative vesting clause rather than as a rigid prohibition on all administrative discretion.

In Wayman v. Southard (1825), Chief Justice John Marshall observed that Congress could not “delegate to the courts or to any other tribunal powers which are strictly and exclusively legislative,” while acknowledging the difficulty of distinguishing those subjects that “must be entirely regulated by the legislature itself” from those of lesser importance in which “a general provision may be made and power given to those who are to act under such general provisions to fill up the details.” The governing principle was that Congress must retain the authority to determine the ends to be pursued and the essential trade-offs to be accepted; only then does electoral responsibility remain a meaningful constraint.

This governing principle remained largely in force for more than a century. The Progressive movement of the late 19th and early 20th centuries, together with its New Deal successors, sought systematically to relocate all but the most general legislative judgments from Congress to administrative agencies.

In “The Study of Administration” (1887), Woodrow Wilson articulated the “politics versus administration” dichotomy that would underwrite this project, insisting that “administration lies outside the proper sphere of politics” and that administrative questions “are not political questions.” Frank Goodnow and other Progressives elaborated the claim that modern complexity required expert administrators insulated from electoral pressure. The institutional consequence has been a pattern of skeletal statutes that announce broad objectives—for example, “in the public interest,” “requisite to protect public health,” or “fair and equitable”—while delegating to agencies the power to prescribe the detailed rules governing private conduct. Agencies now generate the great majority of binding federal rules of general applicability, frequently combining rulemaking, enforcement, and adjudicative functions within a single institution, some of which are further insulated by for-cause removal protections.

The practical effects of this diffusion of responsibility are illustrated by well-documented episodes of bureaucratic despotism. One particularly egregious example involved a couple, Chantell and Michael Sackett, who had purchased a lot near Priest Lake, Idaho, and began preparing it for a home. In 2007, the Environmental Protection Agency determined that the property contained wetlands covered by the Clean Water Act (CWA) and ordered them to restore the site or face potential civil penalties in the tens of thousands of dollars per day. The Sacketts litigated the agency’s assertion of jurisdiction for more than a decade.

The Supreme Court finally ruled in Sackett v. EPA (2023) that the EPA’s interpretation of the CWA was not statutorily defensible. Although the Sacketts ultimately prevailed on the merits, the episode underscores how a generally worded statute, combined with agency discretion to determine the scope of its own authority as well as the power to adjudicate agency actions, can subject private citizens to prolonged regulatory oppression, substantial legal costs, and the threat of crushing daily fines before any definitive judicial resolution of the underlying jurisdictional question.

Congress’s broad delegation of its authority to executive branch agencies has also undermined presidential accountability for actions undertaken by executive agencies. For example, following the 2013 Treasury Inspector General report that documented the Internal Revenue Service’s use of inappropriate criteria to identify tax-exempt applications for additional review, President Obama stated that he first learned of the matter upon reading newspaper accounts and subsequently characterized the episode as involving “not even a smidgen of corruption.” The vaunted nonpartisan character of the IRS, long treated as sacrosanct after Watergate-era reforms, was compromised; yet the president who headed the executive branch professed ignorance and denied responsibility. This episode is just one example of how readily an insulated bureaucracy can serve political ends not sanctioned by Congress while its nominal superior claims plausible deniability.

Indeed, the bureaucracy may be mostly on “autopilot,” allowing agencies to pursue initiatives without the guidance of Congress or the president. A partisan journalist writing for MS Now argued in 2024 that President Joe Biden, despite his obvious senility, should be reelected because he was not—and did not need to be—personally involved in advancing the policy preferences of the Left. The author insisted that reelecting Biden was an easy choice since the broader progressive “system”—agencies, appointees, and allied movements—rather than the individual occupant of the White House would further leftist policy preferences.

Substantial policy is now often advanced by administrative agencies despite or in contradiction to legislative enactment and without clear ownership by the elected president—the very diffusion of accountability the Constitution was designed to prevent.

The Supreme Court’s long-standing accommodation of this arrangement rests upon a non-delegation doctrine that has become difficult to reconcile with the Constitution’s vesting clause. In J.W. Hampton Jr. & Co. v. U.S. (1928), the Court held that a delegation is permissible if Congress supplies an “intelligible principle” to which the delegatee must conform. In two early New Deal cases (before FDR’s infamous court-packing scheme), the Supreme Court did invalidate provisions of the National Industrial Recovery Act that authorized the president to approve industry codes in the absence of meaningful standards, declaring that Congress “cannot delegate legislative power to the President to exercise an unfettered discretion to make whatever laws he thinks may be needed.” However, those decisions remain the only instances in which the Court has invalidated a federal statute on non-delegation grounds.

Thereafter, the “intelligible principle” standard was applied with increasing liberality. Formulations as open-ended as “excessive profits,” “unfair or inequitable,” “just and reasonable,” and “public interest, convenience, or necessity” were sustained. As Justice Neil Gorsuch has observed, the non-delegation doctrine largely fell into desuetude after 1935. From a textual and historical perspective, taking Article I, Section 1 seriously, the Supreme Court’s failure to prohibit Congress from transferring the essential legislative function of establishing generally applicable rules, while retaining only the formal appearance of legislation, constitutes a radical departure from the constitutional system the framers set in place.

Recent decisions do indicate a renewed judicial concern with the scope of agency authority, although the Court has not yet restored a robust non-delegation doctrine capable of invalidating broad statutes.

In Gundy v. United States (2019), a plurality upheld a delegation to the attorney general concerning the application of sex-offender registration requirements. Justice Gorsuch’s dissent, joined by Chief Justice John Roberts and Justice Clarence Thomas, contended that Congress alone must resolve important questions of policy and may leave to the executive only the filling in of details, the ascertainment of facts, or the exercise of powers that are not legislative in character. Justice Alito indicated a willingness to reconsider the Court’s approach in an appropriate future case.

West Virginia v. EPA (2022) applied the major-questions doctrine, requiring clear congressional authorization for agency actions of vast economic and political significance; Justice Gorsuch’s concurrence explicitly connected the doctrine to non-delegation principles grounded in the legislative vesting clause. In Loper Bright Enterprises v. Raimondo (2024), the Court overruled Chevron deference, the doctrine whereby federal courts deferred to a government agency’s reasonable interpretation of an ambiguous statute that an agency administered. In Federal Communications Commission v. Consumers’ Research (2025), the Court sustained the Universal Service Fund contribution scheme under the traditional “intelligible principle” test, concluding that Congress had sufficiently guided the FCC. The majority declined to revise the non-delegation doctrine, yet the continuing disagreement among the justices would seem to preserve the issue for future litigation.

Structural decisions such as Trump v. Slaughter (2026), which overruled Humphrey’s Executor (1935) and reinforced the president’s removal authority over certain independent-agency heads, have further limited the insulation of administrative power, with Justice Gorsuch again underscoring the continuing relevance of non-delegation and related separation-of-powers constraints.

These developments, positive though some may be, also demonstrate the historic damage the Court has inflicted by attenuating the original constitutional functions of each branch. By sustaining broad delegations, it has facilitated Congress’s abdication of its core legislative responsibility, permitting elected representatives to claim credit for high-level objectives while shifting politically salient trade-offs to agencies. By long tolerating for-cause removal restrictions and other forms of insulation, the Court diminished the unitary executive that Alexander Hamilton defended as essential to energy and accountability; only when executive power is concentrated in a single elected officer can the people readily assign responsibility and exact electoral consequences.

Moreover, the Court has frequently presented its interpretations of contested constitutional questions as conclusive, thereby shaping the terms of public debate and limiting the scope of ordinary political resolution. The cumulative result is an administrative apparatus whose career personnel, protected by civil-service tenure and often insulated from presidential direction, may pursue policies that diverge from those endorsed by the electorate, while both Congress and the president are relieved of full responsibility and the judiciary asserts a final interpretive authority.

The constitutional design continues to require that Congress legislate the principal questions of policy; that the president direct and answer for the execution of the laws; and that the courts confine themselves to declaring what the law is rather than stepping in to resolve political questions best left to the political branches.

The Progressive relocation of consequential choices to an unaccountable bureaucracy, long accommodated by a permissive “intelligible principle” standard, remains a central tension in American public law. Whether the Supreme Court will ultimately enforce a more rigorous non-delegation limit or continue to rely principally upon the major-questions doctrine, independent statutory interpretation, and structural constraints on agency independence remains an open question for future litigation. Restoring the original allocation will require not only judicial willingness to acknowledge the boundaries of delegated legislative power but also congressional willingness to resume the work of specific legislation and presidential willingness to assert the unitary executive authority the Constitution provides.