Stare Decisis vs. Overruling Precedent: How Court Decisions Shape Our Laws

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Stare decisis is the practice of following earlier court decisions. It helps people plan around the law rather than depend on each new judge’s view of it, and it means lower courts must follow the higher courts above them.

Precedent is not permanent, though. In 2022 the Supreme Court’s Dobbs ruling overruled Roe v. Wade and said the Constitution confers no right to abortion. But the Court says believing an old ruling was wrong is not enough to overrule it. The harder question is what does justify changing a rule that people have built their lives around, and what happens to finished cases when the rule changes.

Why following precedent does not make it permanent

Stare decisis is Latin for “to stand by things decided”: when a new case has relevantly similar facts, a court applies the legal principles established in earlier cases. The point is to make the law more predictable, treat similar cases consistently and allow people to rely on judicial decisions.

The Supreme Court treats stare decisis as a principle of policy, not an inflexible command to preserve every past decision. A rule that disappeared whenever a new judge disagreed would provide little dependable guidance. But a rule that could never change would prevent the courts from correcting even a serious constitutional error.

Which earlier decisions bind which courts

Vertical stare decisis requires lower courts to follow relevant decisions from higher courts that have authority over them. A federal appeals court, for example, must follow a controlling Supreme Court decision. The lower court does not gain permission to replace that rule because it thinks a different result would be better.

In Rodriguez de Quijas v. Shearson/American Express, Inc., the Supreme Court said that when one of its precedents directly applies to a case, the appeals court must follow it, even if the precedent appears to rest on reasons the Court has rejected in other decisions. The power to overrule the Supreme Court’s own decisions remains with the Supreme Court.

Horizontal stare decisis means a court follows its own prior decisions unless exceptional circumstances justify a departure. Persuasive authority has a different status: if the earlier court lacks binding authority over the court deciding the new case, its decision can inform the reasoning without controlling the result.

Not every statement in an opinion has the same force. A holding is the court’s determination of a legal issue, often the ruling that decides the outcome of the case. Dicta are observations unnecessary to resolve the case; they may persuade another court but are not binding.

A court can also distinguish a precedent by showing that the earlier case’s material facts or legal issue differ from the dispute before it. Distinguishing leaves the earlier rule in place while explaining why it does not govern this case. Overruling goes further: the authorized court rejects the old rule as a rule for deciding later cases.

What can justify changing the rule

Kimble, decided June 22, 2015, concerned royalties on a Spider-Man toy patent and upheld the rule against charging royalties for use of a patent after it expires. To overrule a precedent, the Court said in Kimble v. Marvel Entertainment, LLC, it needs a “special justification” beyond the belief that the earlier decision was wrong.

One consideration is workability: whether the rule is too difficult for lower courts and other interpreters to apply. The Court also considers whether later decisions have eroded a precedent’s reasoning or left it inconsistent with related law. Changes in the understanding of the facts underlying a decision can undermine its authority as well.

Reliance concerns the consequences for people who organized their affairs around an existing rule. The Court gives particular weight to property and contract precedents because people are especially likely to plan around them. Changing the rule can disturb those arrangements even if the new rule seems more persuasive on its merits.

The Supreme Court has not provided an exhaustive list of the factors it uses to decide whether to overrule a decision, or said how it weighs them, the Congressional Research Service notes. That leaves no fixed test: the factors frame the argument, and the justices can disagree about what counts as reliance or how serious an error is.

Why constitutional and statutory precedents get different weight

Statutory precedents interpret laws enacted by Congress. Kimble explains that stare decisis has greater force in statutory interpretation because Congress can correct the Court’s interpretation by changing the law. That holds even for doctrines that judges created to carry out a statute, not only for decisions that rest on its text.

Constitutional precedents are different: Congress may amend a federal law to address a court interpretation it considers wrong, but amending the Constitution to overturn a Supreme Court precedent is much more difficult. The Court therefore has more reason to reconsider a mistaken constitutional interpretation itself. That greater willingness still does not make constitutional precedent meaningless.

Article V permits an amendment to be proposed by two-thirds of both houses of Congress or by a convention called after applications from two-thirds of state legislatures. Ratification then requires three-fourths of the states, through legislatures or conventions as Congress specifies. An ordinary legislative majority cannot use that route to replace a constitutional rule.

Statutory stare decisis is stronger, but it is not absolute either. In Loper Bright Enterprises v. Raimondo, decided June 28, 2024, the Supreme Court held that judges must independently decide whether an agency acted within its statutory authority and may not defer to the agency’s legal interpretation simply because the statute is ambiguous. That ruling overruled the Chevron doctrine, the framework that earlier cases had relied on in deciding whether agency actions were lawful.

But Loper Bright did not call into question earlier cases that relied on Chevron: their holdings that specific agency actions were lawful remain protected by statutory stare decisis. The fact that an earlier ruling used Chevron is not by itself a “special justification” for overruling it. Replacing the general method of interpretation did not automatically wipe away each result reached using it.

What landmark reversals actually show

Brown: rejecting segregation in public education

In the cases resolved by Brown v. Board of Education, Black schoolchildren sought admission to their community’s public schools on a nonsegregated basis. On May 17, 1954, the Supreme Court held that state-imposed racial segregation in public schools violated equal protection under the Fourteenth Amendment, even if the schools’ tangible facilities were equal.

The Court concluded that the doctrine of “separate but equal” has no place in public education and rejected any language to the contrary in Plessy v. Ferguson, an earlier ruling. The Court explained that separation solely by race could create a sense of inferiority with enduring effects on children’s hearts and minds. The reversal concerned what equality required, rather than a simple comparison of buildings or equipment. Plessy, decided May 18, 1896, upheld a Louisiana law requiring equal but separate railway accommodations for Black and white passengers.

West Coast Hotel: liberty of contract and wage laws

Adkins had held a District of Columbia law fixing minimum wages for adult women unconstitutional under the Fifth Amendment’s protection of freedom of contract. West Coast Hotel Co. v. Parrish concerned Washington’s law authorizing minimum wages for women and minors. In its March 29, 1937 decision, the Supreme Court held that the Constitution’s protection of freedom to make contracts still allowed reasonable employment regulations to protect the community. The Court expressly overruled Adkins v. Children’s Hospital. The practical result was that Washington’s minimum-wage law survived the constitutional challenge.

Dobbs: disagreement over error and reliance

On June 24, 2022, the Supreme Court decided Dobbs v. Jackson Women’s Health Organization, overruling Roe v. Wade and Planned Parenthood of Southeastern Pennsylvania v. Casey. The holding said the Constitution did not confer a right to abortion and returned authority to regulate it to the people and their elected representatives.

The Dobbs majority acknowledged that stare decisis protects reliance, saves repeated litigation costs and calls for similar cases to be treated alike. It nevertheless argued that Roe was egregiously wrong, weakly reasoned and damaging, and that Roe and Casey had deepened rather than settled national division. Its analysis considered the nature of the error, the quality of the reasoning, workability, disruption to other law and the absence of concrete reliance.

On reliance, the majority distinguished concrete property and contract expectations from broader claims about how abortion rights shaped people’s lives. The majority argued that courts were ill-equipped to assess the broader social claims.

The joint dissent by Justices Breyer, Sotomayor and Kagan argued that reproductive control enabled women to determine their lives and participate equally in society. The dissent insisted that overruling required a justification beyond believing the old precedents were wrong. It argued that no change in law, facts or attitudes justified reversal, and that only the Court had changed.

The dissent also warned that allowing new judges’ views to drive reversal made radical legal change too easy and too fast. The disagreement was therefore partly about what people can rely on: concrete transactions alone, or the wider organization of their lives around a constitutional right.

The majority said its opinion concerned abortion and should not be read to cast doubt on precedents involving other rights. The dissent questioned whether the majority’s treatment of stare decisis would protect other decisions it considered egregiously wrong. Those are competing arguments about the decision’s implications, not a holding that every other precedent had also been overruled.

What a changed precedent means for a case

When the Supreme Court changes a rule, two questions follow: which law governs cases still in court, and whether a finished case can be reopened. Under Harper v. Virginia Department of Taxation, when the Supreme Court applies a rule of federal law to the parties before it, that rule applies retroactively to all cases still open on direct review. That includes events before the new rule was announced, not only events afterward. Direct review means the normal appeal process, rather than a separate proceeding challenging the judgment.

Harper’s rule covers cases still open on direct review; it does not by itself reopen a case that has ended. Describing the limits on Congress, the Court explained in Plaut v. Spendthrift Farm, Inc. that a final court decision is the judiciary’s last word on that particular case: Congress cannot pass a retroactive law declaring that the law in that case was something other than what the courts said. Whether a finished judgment can still be challenged in a separate proceeding is a different question, and neither of those rules answers it. For final judgments in federal district-court civil cases, Rule 60(b) allows a party to seek relief on specified grounds, including mistake or fraud by an opposing party. Motions based on mistake or fraud by an opposing party must be filed within a reasonable time and no more than one year after entry of the judgment.

To understand a reversal, identify the court with authority to change the precedent, the legal issue actually decided and the scope of the replacement rule. Check later decisions from courts with authority over the case for an express overruling or a limit on the relevant holding.