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United States · Abortion · 1973–2022

A constitutional right created, reshaped and overruled

Follow Roe and Casey through clinic-regulation disputes, a divided application of precedent, and Dobbs.

Public historical research, separate from your private cases. Each collection ends at the dates shown. Summaries describe the judgments at that time; they are not a current-law citator or an eligibility assessment. Editorial notes are in English.

The competing arguments

How can a constitutional rule survive for decades, change its test, and then be expressly overruled?

Liberty, reliance and practical access

The opinions protecting abortion access emphasized decisional liberty, the consequences of restrictions and reliance on an established constitutional rule.

History, judicial role and legislative choice

The contrary opinions challenged the constitutional foundation of the right, the courts’ role in reviewing health regulation and whether precedent should preserve a wrongly decided rule.

How the decisions connect

Editorial reading guide. Each connection links to the judgments and explains the kind of disagreement.

The decision timeline

  1. · US Supreme Court

    Roe v. Wade

    410 U.S. 113 · 7–2

    Did the Fourteenth Amendment protect the decision to terminate a pregnancy against Texas’s criminal prohibition?

    What the court decided
    Roe recognized a qualified constitutional abortion right and organized permissible regulation through a trimester framework, with increasing state interests in health and potential life.
    Where the disagreement sits
    Rehnquist and White dissented. The disagreement included the historical foundation for the right and the judiciary’s authority to draw regulatory lines.
    Historical treatment and limits
    Expressly overruled by Dobbs in 2022. Its framework is presented here as legal history.
    Read the source and pinpointJudgment · 410 U.S. 113

    410 U.S. pp. 152–166; dissents pp. 171–178

  2. · US Supreme Court

    Planned Parenthood v. Casey

    505 U.S. 833 · Fragmented; 5 justices retained Roe’s essential holding

    Should Roe survive, and which Pennsylvania requirements could stand?

    What the court decided
    The Court retained the pre-viability protection while replacing the trimester approach with an undue-burden standard. It invalidated spousal notification while allowing other challenged requirements.
    Where the disagreement sits
    The joint opinion invoked liberty, reliance and stare decisis. Some justices wanted stronger protection; others would have overruled Roe. The votes differed by provision and part of the opinion.
    Historical treatment and limits
    Expressly overruled by Dobbs in 2022; do not treat the old undue-burden rule as the present federal abortion-right test.
    Read the source and pinpointJudgment · 505 U.S. 833

    505 U.S. pp. 843–879, 887–898; joint opinion and separate opinions

  3. · US Supreme Court

    Whole Woman’s Health v. Hellerstedt

    579 U.S. 582 · 5–3

    Did Texas’s admitting-privileges and surgical-center requirements impose an undue burden?

    What the court decided
    The Court invalidated both requirements, assessing the asserted medical benefits against the obstacles to access and reversing the Fifth Circuit.
    Where the disagreement sits
    The dissents challenged the treatment of earlier litigation, the evidence and the scope of judicial review. The majority treated the factual record as central to the constitutional inquiry.
    Historical treatment and limits
    A historical application of Casey’s framework. Read with June Medical’s competing explanations and Dobbs’s later rejection of the constitutional abortion right.
    Read the source and pinpointJudgment · 579 U.S. 582

    579 U.S. 582; majority opinion and separate dissents

  4. · US Supreme Court

    June Medical Services v. Russo

    591 U.S. 299 · 5–4 in the judgment; 4-justice plurality plus Roberts

    Could Louisiana enforce a similar admitting-privileges rule after Hellerstedt?

    What the court decided
    The Court reversed the Fifth Circuit and invalidated the Louisiana restriction. Four justices applied Hellerstedt’s benefits-and-burdens analysis.
    Where the disagreement sits
    Roberts supplied the fifth vote on stare decisis grounds while rejecting the plurality’s balancing approach and maintaining that Hellerstedt was wrongly decided. Agreement on the result did not mean agreement on a legal test.
    Historical treatment and limits
    This entry describes a pre-Dobbs abortion-right ruling, not today’s governing abortion-right framework.
    Read the source and pinpointJudgment · 591 U.S. 299

    Plurality slip pp. 16–40; Roberts concurrence slip pp. 1–16; separate dissents

  5. · US Supreme Court

    Dobbs v. Jackson Women’s Health Organization

    597 U.S. 215 · 6–3 in the judgment; 5–4 to overrule Roe and Casey

    Could Mississippi prohibit most abortions after 15 weeks, and should Roe and Casey survive?

    What the court decided
    The majority held that the Constitution does not confer an abortion right and expressly overruled Roe and Casey. It evaluated abortion restrictions under rational-basis review.
    Where the disagreement sits
    Roberts would have upheld the 15-week law without fully overruling the precedents. Breyer, Sotomayor and Kagan dissented, emphasizing liberty, equality, reliance and the consequences of overruling.
    Historical treatment and limits
    Dobbs changed the federal constitutional baseline. This historical collection does not catalogue subsequent state constitutions, statutes or litigation.
    Read the source and pinpointJudgment · 597 U.S. 215

    Majority slip pp. 8–79; Roberts concurrence; joint dissent

Questions worth investigating

  1. Separate the vote to uphold Mississippi’s law from the vote to overrule Roe and Casey.
  2. Why is Roberts’s June Medical concurrence important when reading a fragmented judgment?
  3. Which claims concern the constitutional rule, and which concern evidence about access?
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Sources reviewed 2026-11-08. Holdings and separate opinions are summarized in our own words.