The Dormant Commerce Clause: Judicial Power the Constitution Never Granted

Most Americans know the first abuse of the Commerce Clause. Congress has stretched the words "commerce among the several States" to regulate wheat grown for home consumption, health insurance, and nearly anything else that touches a market. That story has been told many times. But there is a second abuse that gets far less attention, and it is just as destructive to the constitutional order. It is the so-called Dormant Commerce Clause, a judge-made doctrine that allows federal courts to strike down state laws even when Congress has passed no law at all. The text does not say that. The original design does not support it. And yet it has become one of the most powerful, least examined weapons in the federal judiciary's arsenal.

The Text Does Not Say That

Article I, Section 8 grants Congress power "To regulate Commerce with foreign Nations, and among the several States, and with the Indian Tribes." Read it plainly. It is a grant of power to Congress, not a restriction on the states. It does not say "No State shall burden interstate commerce." It does not say "The courts shall balance a state's interest against the national market." It simply says Congress may regulate.

The Framers knew how to limit the states when they wanted to. Article I, Section 10 is explicit: "No State shall, without the Consent of the Congress, lay any Imposts or Duties on Imports or Exports." That is a real, textual restriction on state power. The Commerce Clause contains no such language. The difference is not a technicality. It is the difference between a written Constitution and a living one.

The very name "Dormant Commerce Clause" is revealing. It suggests the clause is quietly imposing its will from the shadows while Congress sleeps. But clauses do not have wills. If Congress has not acted, there is no federal law to enforce. The clause is not dormant. It is simply uninvoked.

Why the Clause Existed

The Commerce Clause was written to solve a real problem under the Articles of Confederation. States were imposing tariffs and trade barriers on each other's goods, strangling interstate commerce and breeding hostility. In Federalist No. 42, James Madison explained that the absence of a federal commerce power had been a defect in the existing confederacy. The remedy was to give Congress the authority to create a free trade zone by overriding state barriers.

But notice the mechanism. Congress would legislate. The states would be preempted by an actual federal statute, not by a federal judge's balancing test. The Constitution gave the national legislature a tool. It did not give the courts a roving commission to decide which state economic policies are wise.

The Judges Move In

Over the course of the nineteenth and twentieth centuries, the Supreme Court gradually invented the idea that the Commerce Clause has a "negative" or "dormant" implication. According to this doctrine, even when Congress has not acted, state laws that unduly burden interstate commerce are unconstitutional. This principle was not written by the Founders. It was built by judges, case by case, using vague balancing tests.

Today, courts ask whether a state law's burden on interstate commerce is "clearly excessive" compared to its local benefits. That language comes from Pike v. Bruce Church, a 1970 Supreme Court decision. But read it carefully. It is not constitutional interpretation. It is cost-benefit analysis, the kind of thing legislatures do when they write laws. A court weighing whether California's pork rules are too burdensome for Iowa hog farmers is not applying the Constitution's text. It is making economic policy.

Consider National Pork Producers Council v. Ross in 2023. The Supreme Court had to decide whether California's Proposition 12, animal housing standards that affect out-of-state pork producers, violated the Dormant Commerce Clause. The Court said no, but the entire exercise was revealing. Nine judges were asked to decide whether a state law has too much "extraterritorial effect." That is not a legal question. It is a political one.

We have seen the same thing with wine shipments, garbage imports, and liquor licensing. In Granholm v. Heald, the Court invoked the Dormant Commerce Clause to strike down state wine-shipping restrictions. In Tennessee Wine and Spirits Retailers Association v. Thomas, it struck down a residency requirement for liquor store licenses. Some of those results may be attractive to free-market advocates. But the method matters more than the outcome.

Originalists Cannot Have It Both Ways

Here is the uncomfortable part for many conservatives and libertarians. Some of us like the results when the Dormant Commerce Clause strikes down protectionist state laws. We cheer when courts invalidate state wine monopolies or garbage import bans. But the rule of law is not about outcomes. It is about method.

If we condemn judges for inventing a right to abortion or discovering a "living Constitution," we cannot then praise them for inventing a Dormant Commerce Clause to produce free-market results. The same judicial creativity that gives us one can give us the other. Justice Antonin Scalia put it bluntly: the negative Commerce Clause is a judicial creation, not a constitutional command. He was right. Originalism means the text means what it says, whether we like the outcome in a particular case or not.

Justice Clarence Thomas has made the same argument for years. The dormant doctrine is not grounded in the original meaning of the Constitution. It survives mainly because it has been around so long that courts treat it as part of the furniture. That is not a constitutional argument. That is habit.

The economist Henry Hazlitt taught us to look beyond the seen to the unseen. The visible benefit of a court striking down a bad state law is obvious. The unseen cost is the erosion of the rule of law. Every time judges substitute their economic judgments for the text, they expand their own power and shrink the space for self-government. The long-run cost is far greater than the short-run victory.

The Proper Remedy

Does that mean states are free to impose trade wars on each other? No. The Constitution already provides the answer. Congress has the power to regulate interstate commerce. If California imposes a law that unfairly burdens Texas businesses, Congress can pass a statute preempting it. That is the constitutional design. Elected lawmakers, accountable to the people, decide the balance. If Congress does nothing, citizens and businesses can vote with their feet. States compete. That is federalism, and it is a feature, not a bug.

The Constitution also contains specific protections against state discrimination. Article IV's Privileges and Immunities Clause protects citizens of other states from discriminatory treatment. Article I, Section 10 prohibits state tariffs on imports and exports without congressional consent. We do not need judges to invent an additional, unwritten restriction to protect a national market.

Some argue that abolishing the Dormant Commerce Clause would let states run wild. But states that burden outside businesses usually harm their own citizens too. They raise prices, reduce competition, and drive away investment. Voters and businesses can respond. And when a state law truly threatens the national market, Congress can act. That is the system the Framers designed. It does not require nine judges to decide what is fair. It requires the people's representatives to do their jobs.

The Bottom Line

The Commerce Clause was written to give Congress power to keep interstate commerce regular and free. It was not written to give federal courts a roving commission to second-guess state economic policy. The Dormant Commerce Clause is a constitutional ghost: powerful, invisible, and nowhere in the text.

If we believe in limited government, originalism, and the Constitution as written, we should say so plainly. Repeal the ghost. Return to the text. Let Congress legislate, and let judges judge.