Conservatives Challenge Private Lawsuits on Environmental and Civil Rights

Donald Trump and allied legal activists have recently advanced a sweeping constitutional argument aimed at curtailing — and potentially eliminating — private lawsuits brought under major federal statutes such as the National Environmental Policy Act (EPA‑related citizen‑suit provisions) and Title IX. These important challenges claim that Congress improperly delegated executive enforcement power to private citizens, advocacy groups, and local governments, violating separation‑of‑powers principles. The challenges are corollaries to the “unitary executive theory” that the Trump Administration is also using to attack so-called independent federal agencies, such as the Federal Reserve, Federal Trade Commission, NLRB, or FERC.

If this trend in cases being argued before the federal courts succeeds, much of what is currently taught at Cornell as well-accepted law will be drastically changed.

The Constitutional Theory: Reclaiming Executive Enforcement Power

Since the New Deal, Congress has recognized the need for regulation that is far more complex and detailed than can be written into the laws it drafts. So, Congress has tended to write high-level, general laws and then delegate to the Executive Branch or to independent agencies to enforce them. In many situations, Congress vested enforcement powers in agencies rather than solely in the President. It also expressly authorized private citizens and groups to file lawsuits as “private attorneys general.” The courts would decide appeals from the agencies or adjudicate cases filed by private citizens, even if a President personally held an opposing view. The result was a balance of power between the three branches of government.

The Trump‑aligned position argues that the Constitution vests enforcement authority exclusively in the executive branch. Constitution Article II § 1 vests “the executive Power” solely in the President. Under this view, conservatives can invoke the Constitution to challenge the private-cause-of-action provisions in statutes because private parties suing polluters or institutions that violate federal law improperly “dilute” executive power. Congress allegedly cannot authorize private enforcement of federal statutes because doing so transfers prosecutorial discretion away from the President and federal agencies. This argument draws on earlier Supreme Court signals, including Justice Kennedy’s observation in Friends of the Earth, Inc. v. Laidlaw Environmental Services (TOC), Inc., 528 U.S. 167 (2000), that citizen suits raise “difficult and fundamental” separation‑of‑powers questions, and Justice Scalia’s dissent describing them as turning enforcement “over to private citizens.”

The argument is also built upon the 2024 SEC v. Jarksey case, which held that the SEC could not delegate fraud enforcement cases to Administrative Law Judges for a decision if those judges were not subject to removal by the President.

This theory is now being tested in multiple federal cases, with Trump‑aligned litigants seeking to invalidate the private cause-of-action provisions across environmental, campaign‑finance, Title IX, and other statutory regimes.

Why Environmental Laws Are a Primary Target

Environmental statutes — including the Clean Water Act, Clean Air Act, and other EPA‑related frameworks — rely heavily on citizen suits. These provisions allow private plaintiffs to halt illegal pollution, compel agency action, impose fines on violators, and force remediation of environmental problems.

Environmentalists warn that eliminating citizen suits would be devastating, especially given limited federal enforcement resources. Citizen suits have historically extracted millions from polluters and compelled remediation and compliance where agencies lacked capacity or political will.

The conservative movement views these suits as a structural threat because they allow private actors to override executive enforcement priorities — particularly when administrations seek to deregulate or reduce environmental oversight.

Title IX and the Parallel Challenge to Private Enforcement

Although the current wave of litigation is most visible in environmental law, the same constitutional theory applies to Title IX, which similarly relies on private complaints and lawsuits to enforce gender‑equity obligations in education.

If courts adopt the Trump‑aligned view:

• Private Title IX lawsuits could be curtailed or eliminated.
• Enforcement would shift almost entirely to the Department of Education or a successor agency.
• Schools could face fewer private legal challenges over sexual‑misconduct procedures, athletics equity, or discrimination.

This would represent a profound shift in civil‑rights enforcement, reducing students’ and employees’ ability to seek remedies independently of federal agencies.

The Litigation Landscape: Pending Federal Cases

According to AP News reporting, four federal cases are now advancing the challenge, one filed as recently as August 2026. These cases aim to create disagreement among federal appellate courts, increasing the likelihood of Supreme Court review.

In Tennessee Riverkeeper, Inc. v. City of Springfield, Tennessee, the Pacific Legal Foundation is challenging the right of an environmental advocacy organization to sue to enforce the Clean Water Act over the operation of a city sewage treatment plant.

In NAACP v. xAI, Elon Musk’s artificial intelligence firm, xAI, has built a Memphis data center powered by gas diesel turbines without the Clean Air Act permits that local black neighbors believe are required. The NAACP is suing on behalf of the neighbors, alleging this is a matter of environmental justice.

Legal experts note that the current conservative majority is more receptive than ever to arguments limiting private enforcement.

Analysis

If this application of the “unitary executive theory” prevails, there will be a dramatic reduction in enforcement of environmental laws against polluters during the current Trump Administration. Most enforcement efforts would shift to state environmental programs.

Even if a new administration arrives in 2028, future enforcement expansion would be under the control of the EPA rather than relying on the discretion of environmental activist organizations.

In other areas, such as Title IX enforcement, there is greater potential for unintended consequences. During the Trump Administration, advocates for men participating in women’s sports would be left without a legal remedy to sue under Title IX.  However, if a future administration adopted the opposite view mandating transgender rights, this same legal theory would cut off litigation from conservatives.

One can foresee possible ripple effects across campaign‑finance law, disability rights, and labor protections. These changes would result in a major rebalancing of power toward the executive branch and away from “public interest” advocacy groups that bring cases decided by the federal judiciary.

As Congress considers legislating in new areas, such as college sports, it will consider whether to add a private cause-of-action provision allowing athletes to sue to protect their rights. (Previous college sports lawsuits were based on antitrust laws.) If Congress honors this theory, new legislation would leave enforcement to the discretion of the President instead of allowing athletes, colleges, or conferences to sue directly. However, Section 119 of the current bill, S. 4668, expressly provides for a private cause of action, allowing any person to sue to enforce the new law.

This issue is heading toward the Supreme Court. The current conservative majority has shown interest in revisiting long‑standing enforcement doctrines, and the current cases are designed to create circuit splits that force the Court’s hand.

If the Court embraces the Trump‑aligned theory, it would mark one of the most significant shifts in federal enforcement power in decades.