# Lochner Era
The **Lochner Era** (~1897-1937) is the period in which the [[Supreme Court of the United States]] routinely struck down labor, health, and economic regulations as violations of a judicially invented "liberty of contract" under the Due Process Clause of the [[Fourteenth Amendment]]. Named for [[Lochner v. New York]] (1905), the era represents the most sustained episode of judicial deregulation in American history — a forty-year campaign in which the Court constitutionalized [[Laissez-Faire]] economics and blocked democratic majorities from regulating working conditions, wages, and [[Child Labor]].
The era's significance for this KB is not merely historical. Lochnerism is the direct ancestor of the modern conservative legal movement's project to dismantle the [[Administrative State]], and the structural parallels between the Lochner Court and the current [[Supreme Court of the United States]] are the central concern of the [[Conservative Court Capture Timeline]].
## The Doctrinal Core: Liberty of Contract
The Lochner Era rested on a single constitutional invention: that the [[Fourteenth Amendment]]'s guarantee that no state shall deprive any person of "life, liberty, or property, without due process of law" contained within it a substantive right to freedom of contract. This doctrine — substantive due process applied to economic regulation — held that the government could not interfere with the terms on which employers and employees agreed to do business, because such interference violated the "liberty" of both parties.
The doctrine appeared nowhere in the constitutional text. The framers of the [[Fourteenth Amendment]] wrote it to protect the civil rights of formerly enslaved people, not to constitutionalize the labor theories of [[Herbert Spencer]]. Yet the Court read into the amendment an entire economic philosophy — one that treated the bargaining position of a factory owner and a ten-year-old mill worker as constitutionally equivalent.
## Landmark Cases
**[[Lochner v. New York]] (1905).** The namesake case struck down a New York law limiting bakers to sixty hours per week, ruling it an "unreasonable, unnecessary, and arbitrary interference with the right of the individual to his personal liberty." [[Oliver Wendell Holmes Jr]] dissented with what became one of the most cited lines in constitutional law: "The [[Fourteenth Amendment]] does not enact Mr. [[Herbert Spencer]]'s Social Statics." Holmes's point was precise — the Constitution does not embed any particular economic theory, and judges who pretend otherwise are legislating from the bench.
**Hammer v. Dagenhart (1918).** The Court struck down a federal law prohibiting the interstate shipment of goods produced by [[Child Labor]], holding that Congress's [[Commerce Clause]] power did not extend to regulating manufacturing conditions. Children could be worked in mines and mills, and the democratic branches could do nothing about it. The decision was not overruled until 1941.
**Adkins v. Children's Hospital (1923).** The Court struck down a minimum wage law for women in the District of Columbia, ruling that the right to contract for wages was constitutionally protected. [[Louis Brandeis]] recused himself because his daughter was involved in the case, depriving the dissenters of their most effective voice.
**Coppage v. Kansas (1915).** The Court invalidated a Kansas law prohibiting "yellow-dog contracts" — agreements in which workers promised not to join unions as a condition of employment. The Court held that both employer and employee had equal liberty to set contract terms, a formalism that ignored the real-world power asymmetry between a corporation and an individual worker seeking a paycheck.
## The Dissenting Tradition
The Lochner Era produced some of the most important dissenting opinions in American legal history, and it is the dissenters — not the majority — whom modern constitutional law vindicates.
[[Oliver Wendell Holmes Jr]]'s dissent in [[Lochner v. New York]] established the template: the Constitution is not a vehicle for judges' economic preferences, and "general propositions do not decide concrete cases." Holmes understood that the majority was doing exactly what modern [[Originalism]] claims to oppose — reading the justices' policy views into an ambiguous constitutional text.
[[Louis Brandeis]] pioneered a different mode of dissent. In Muller v. Oregon (1908), he introduced the "Brandeis brief" — a submission that marshaled sociological and medical evidence about the actual effects of long working hours on women's health. The innovation was methodological: rather than dueling abstractions about "liberty," Brandeis forced the Court to confront the empirical reality that its doctrines ignored. The [[Supreme Court of the United States]] upheld the Oregon law in that case, but the Brandeis method did not prevail broadly until the era collapsed.
## The Fall: "The Switch in Time That Saved Nine"
The Lochner Era ended not through gradual doctrinal evolution but through political crisis. After winning a landslide reelection in 1936, Franklin Roosevelt proposed expanding the [[Supreme Court of the United States]] from nine to fifteen justices — the "court-packing plan" — to overcome the Court's systematic obstruction of [[New Deal]] legislation. The plan was politically unpopular even among Roosevelt's allies, but it may have achieved its purpose indirectly.
In [[West Coast Hotel v. Parrish]] (1937), Justice Owen Roberts switched his vote to uphold a Washington state minimum wage law, abandoning the liberty-of-contract framework. This was "the switch in time that saved nine" — though historians debate whether Roberts was responding to political pressure or had already decided to change course before the court-packing plan was announced. Either way, the practical effect was decisive: the Court stopped blocking economic regulation, the court-packing plan became unnecessary, and the constitutional framework for the [[New Deal]] and the modern regulatory state was secured.
## The Lochner Irony: Invented Rights and Selective Originalism
The deepest irony of the Lochner Era, and the reason it matters to any analysis of [[Originalism]], is that "liberty of contract" was precisely the kind of judicially invented right that modern originalists claim to oppose. The Lochner Court did what originalists accuse the Warren and Burger Courts of doing with privacy rights and [[Roe v. Wade]]: it found in the Constitution a substantive right that the text does not contain, using it to override democratic legislation.
Yet the originalist movement's relationship with Lochnerism is not one of simple repudiation. The [[Federalist Society]] encompasses a significant [[Libertarianism]] wing — scholars and litigators who argue that the Lochner Court was *correct* that the Constitution protects economic liberty, and that the post-1937 settlement was the real deviation. Richard Epstein's *Takings* (1985) and Randy Barnett's *Restoring the Lost Constitution* (2004) are the intellectual landmarks of this neo-Lochnerite project. The [[Institute for Justice]], the libertarian public-interest law firm, has built its litigation strategy around reviving judicial protection for economic liberty — challenging occupational licensing, eminent domain abuse, and regulatory barriers to entry.
The tension is real: mainstream originalists like [[Clarence Thomas]] and [[Neil Gorsuch]] are skeptical of substantive due process in any form (Thomas would overrule the entire doctrine), yet their hostility to administrative regulation produces outcomes that functionally echo Lochner-era results. The mechanism has changed — the modern Court restricts regulation through the "major questions doctrine," limits on [[Commerce Clause]] power, and the dismantling of [[Chevron deference]] via [[Loper Bright v. Raimondo]] — but the structural effect is convergent: a judiciary that blocks the democratic branches from regulating economic activity.
## The Modern Lochner: Structural Parallels
The parallels between the Lochner Court and the current [[Supreme Court of the United States]] are not rhetorical — they are structural:
The Lochner Court struck down maximum-hours laws. The current Court, in [[West Virginia v. EPA]], limited the EPA's authority to regulate greenhouse gas emissions under the "major questions doctrine" — a judicially invented standard with no more textual basis than liberty of contract.
The Lochner Court elevated freedom of contract above legislative judgment. The current Court elevated [[Originalism]] and textualism as interpretive methods, then applied them selectively — rigorously when striking down gun regulations or affirmative action, loosely when overruling [[Roe v. Wade]] in [[Dobbs v. Jackson Women's Health Organization]] despite fifty years of reliance interests.
The Lochner Court was the product of a [[Gilded Age]] in which corporate power dominated politics. The current Court is the product of a fifty-year campaign — documented in the [[Conservative Court Capture Timeline]] — in which the [[Federalist Society]], the [[Heritage Foundation]], the [[Koch Network]], and [[ALEC]] systematically reshaped the judiciary's composition and doctrine. The [[Powell Memo]] (1971) is the strategic blueprint; the 6-3 conservative supermajority is the result.
The Lochner Era ended when political pressure made the Court's position untenable. Whether the current era of judicial maximalism faces a similar reckoning remains the open question of American constitutional politics.
## What Lochnerism Reveals
The Lochner Era is not just a historical curiosity — it is a case study in how judicial power can be captured by economic ideology while claiming constitutional neutrality. The Lochner Court did not announce that it was imposing [[Laissez-Faire]] economics; it claimed to be enforcing the Constitution's plain meaning. The current Court does not announce that it is advancing [[Deregulation]]; it claims to be applying [[Originalism]] and enforcing the separation of powers.
The pattern is the same: a judiciary aligned with concentrated economic power develops constitutional doctrines that systematically favor that power, while presenting those doctrines as principled legal reasoning rather than ideological choice. Recognizing this pattern is the first step toward understanding both the [[Gilded Age]] Court and its modern successor — and the [[Progressive Era]] response offers the only historical precedent for successfully confronting it.