Landmark Supreme Court Cases Study Notes

Marbury v. Madison (1803)

Context: Early U.S. constitutional framework and the question of judicial power.
Core holding: Established the principle of judicial review; the Supreme Court can strike down laws or executive actions that are unconstitutional.
Facts often summarized: William Marbury sued James Madison for a writ of mandamus to compel delivery of his commission as a justice of the peace; the Court found it had no jurisdiction to issue the writ under the Constitution, but used the decision to assert that the Constitution grants the Court the power to interpret and void laws that conflict with the Constitution.
Significance: Solidified the judiciary as a co-equal branch with the ability to interpret the Constitution and check legislative/executive power; foundational for future constitutional interpretation.
Connections: Sets precedent for judicial supremacy and constitutional interpretation that underpins later civil rights and civil liberties cases.
Implications: Judicial review enables the protection of constitutional rights even when Congress or the President acts contrary to the Constitution.

Dred Scott v. Sandford (1857)

Core holding: African Americans, whether enslaved or free, were not citizens of the United States; Congress lacked authority to prohibit slavery in new territories; the Missouri Compromise (and similar efforts) was unconstitutional as to those territories.
Context: Decision issued in a highly charged pre-Civil War era; contributed to sectional tensions.
Significance: Helped precipitate the Civil War by denying basic citizenship rights to a large group of people and by declaring federal legislative limits on slavery in territories invalid.
Connection: Contrasts with later Civil Rights-era jurisprudence that would affirm equal protection and citizenship rights for Black Americans.
Implications: Demonstrated the limitations and hazards of constitutional interpretation when it relies on racial classifications; affected the constitutional landscape until overturned by subsequent amendments and cases.

Engel v. Vitale (1962)

Issue: Prayer in public schools and the Establishment Clause of the First Amendment.
Holding: State-sponsored prayer in public schools is unconstitutional as an establishment of religion.
Ruling context: The Court struck down a state-mandated daily prayer, even a non-denominational one, as violating government establishment of religion.
Opinion leadership: Majority opinion authored by Justice Black.
Significance: Reinforced the separation of church and state in public education; set a precedent that government actions endorsing religion are impermissible.
Key concept: Establishment Clause prohibits government endorsement of religion, while free exercise remains separate; later cases refine these boundaries.

Epperson v. Arkansas (1968)

Issue: State law banning the teaching of human evolution in public schools.
Holding: The law was unconstitutional; it violated the Establishment Clause as a government endorsement of a particular religious view.
Rationale: Laws banning evolution education cannot be justified by neutrality toward religion; government actions cannot be used to suppress scientific theories.
Significance: Affirmed that governmental restriction on scientific theories, even if framed as neutrality or skepticism about religion, violates constitutional protections.
Related concept: Prefigures the deployment of neutrality tests later in Establishment Clause jurisprudence; not a Lemon-test case per se, but sets tone for neutrality in education.

Van Orden v. Perry (2005)

Issue: Whether a Ten Commandments monument on the Texas State Capitol grounds violated the Establishment Clause.
Holding: The display did not violate the Establishment Clause; historical, ubiquitous, and ceremonial context allowed it to stand.
Key point: The Court did not rely on the Lemon test; instead, it emphasized historical tradition and context as permissible under the Establishment Clause.
Significance: Demonstrates the diversity of tests and considerations the Court may apply in Establishment Clause cases; not every religious symbol in public spaces is unconstitutional.
Justice leadership: Opinion delivered by Justice Rehnquist.

Town of Greece v. Galloway (2014)

Issue: Praying practices by local government and whether they violate the Establishment or Free Exercise Clauses.
Holding: The Court upheld the practice of opening meetings with prayer, so long as it did not discriminate against faith traditions and was consistent with long-standing tradition in the community.
Significance: Allowed legislative prayer practices that are not coercive or exclusive; emphasized practice rather than a specific endorsement.
Real-world relevance: Illustrates limits on Establishment Clause challenges when prayer practices reflect historical norms and provide inclusivity safeguards.

Burwell v. Hobby Lobby Stores, Inc. (2014)

Issue: Whether for-profit corporations can be exempt from certain ACA contraceptive-coverage requirements based on religious beliefs under the Religious Freedom Restoration Act (RFRA).
Holding: RFRA permits for-profit corporations to be exempt if providing the coverage would violate the sincerely held religious beliefs of the company owners.
Rationale: Emphasized religious liberty protections for corporations to the extent permitted by RFRA; the Court did not strike down the contraceptive-coverage rules entirely but allowed exemptions in certain cases.
Significance: Expanded the understanding of religious liberty to include burdens on corporate entities under RFRA; sparked ongoing debates about the balance between religious freedom and public health requirements.

Gideon v. Wainwright (1963)

Issue: Right to counsel for criminal defendants under the 6th Amendment; applicability to state courts via the 14th Amendment.
Holding: Right to counsel is a fundamental right; the state must appoint counsel for defendants who cannot afford one.
Significance: Ensures fair trial rights across state and federal courts; catalyzed the broader incorporation of constitutional protections via the Fourteenth Amendment.
Impact: Strengthens due process and the quality of defense by guaranteeing legal representation regardless of ability to pay.

Miranda v. Arizona (1966)

Issue: Requirements for police interrogation and the protection against self-incrimination.
Holding: Suspects must be informed of rights to remain silent and to counsel (Miranda rights); statements obtained in custodial interrogation without such warnings are inadmissible in court.
Scope: Applies to interrogations at the state level via the 14th Amendment.
Significance: Created a robust procedural safeguard against self-incrimination and ensured fair interrogation practices.
Opinion: Unanimous; opinion authored by Chief Justice Warren with substantial contributions from others.

Brown v. Board of Education of Topeka (1954)

Issue: Racial segregation in public schools violated equal protection under the 14th Amendment.
Holding: State-sponsored segregation in public education is unconstitutional because “separate but equal” facilities are inherently unequal.
Significance: Overturned the separate-but-equal doctrine established in Plessy v. Ferguson (1896); catalyzed the Civil Rights Movement and desegregation efforts.
Impact: Laid groundwork for subsequent civil rights reforms and dismantling of legalized racial segregation.

Gratz v. Bollinger (2003) and Grutter v. Bollinger (2003)

Gratz (6-3): The University of Michigan undergrad admissions scheme that gave automatic points to underrepresented minorities violated the Equal Protection Clause (EP) because it was not narrowly tailored to a compelling interest.
Grutter (5-4): The University of Michigan Law School’s admissions policy, which considered race as one factor among many in a holistic review, was permissible as narrowly tailored to achieve the educational benefit of a diverse student body.
Significance: Demonstrated a nuanced approach to affirmative action, distinguishing between rigid point-based systems and holistic review that aims for diversity.

Fisher v. University of Texas (2013, 2016)

2013: SC refused to hear the case; 2016: the Court, with Justice Kennedy writing the majority, upheld the UT Austin undergraduate admissions policy (in a 4-3 decision) as constitutional, applying the strict-scrutiny standard and ruling that the program was narrowly tailored to achieve diversity.
Significance: Continued deference to university admissions programs that consider race as part of a holistic evaluation aimed at achieving diversity with educational benefits.

Citizens United v. Federal Election Commission (2010)

Issue: Whether corporate funding of political broadcasts constitutes political speech under the First Amendment.
Holding: Corporate funding of political broadcasts is protected speech; restrictions on corporate spending in elections violated the First Amendment.
Significance: Expanded the influence of money in politics; sparked ongoing debates about campaign finance reform and the role of corporations and special interests in elections.

Bush v. Gore (2000)

Issue: Presidential election recount procedures in Florida and their compliance with equal protection guarantees.
Holding: Recount procedures in Florida were inconsistent with the Equal Protection Clause due to varying standards; effectively halted the recount and resulted in George W. Bush winning the presidency.
Significance: Demonstrated the constitutional dimensions of electoral processes and the Supreme Court’s role in resolving disputed elections.

Griswold v. Connecticut (1965)

Issue: A Connecticut law banning the use of contraception by married couples.
Holding: The law violated the right to privacy inferred from multiple amendments (implicit in the penumbras of the First, Third, Fourth, Fifth, and Ninth Amendments).
Significance: Recognized a constitutional right to privacy that would later be central to abortion rights in Roe v. Wade; foundational for how privacy rights are inferred rather than expressly stated.

Roe v. Wade (1973)

Issue: Constitutional right to abortion.
Holding: The right to privacy implied by the Due Process Clause of the 14th Amendment extends to a woman's decision to terminate a pregnancy; established a framework balancing state interests with a woman's liberty.
Significance: Landmark decision shaping reproductive rights and public policy.
Note on reasoning: Used the concept of liberty and privacy to justify abortion rights, later refined by trimester framework (which was altered in subsequent cases).

Planned Parenthood v. Casey (1992)

Issue: Regulation of abortion.
Holding: Upheld the central holding of Roe but replaced the strict one-size-fits-all standard with the undue burden standard for evaluating abortion restrictions; allowed states to regulate abortions as long as restrictions do not place an undue burden on a woman seeking an abortion.
Significance: Refined the constitutional framework for abortion regulation; underscores states’ regulatory power while protecting core rights.
Opinion: Justice Breyer authored the plurality opinion.

Whole Woman’s Health v. Hellerstedt (2016)

Issue: Texas abortion restrictions.
Holding: Struck down provisions requiring admitting-privileges for physicians and certain standards for clinics as imposing an undue burden on women seeking abortions.
Significance: Reinforced the undue burden standard established in Casey; emphasized that regulations must not create substantial obstacles to abortion access.

District of Columbia v. Heller (2008)

Issue: Whether the Second Amendment protects an individual’s right to possess firearms in the home for self-defense.
Holding: The Second Amendment protects an individual’s right to possess a firearm for lawful purposes, such as self-defense within the home; struck down DC’s handgun ban.
Significance: Important step in the incorporation and realization of an individual right to bear arms in certain jurisdictions.

McDonald v. City of Chicago (2010)

Issue: Whether the Second Amendment applies to the states.
Holding: The Second Amendment is incorporated to apply to the states via the Fourteenth Amendment’s due process clause, not merely to federal jurisdictions.
Significance: Extended the individual right to bear arms to state and local governments; harmonizes with Heller’s federal framework.

Obergefell v. Hodges (2015)

Issue: Whether states must recognize and license marriages between same-sex couples.
Holding: The Fourteenth Amendment guarantees same-sex couples the right to marry.
Significance: Established a uniform nationwide recognition of same-sex marriage; a landmark expansion of equal protection and liberty rights.

West Coast Hotel Co. v. Parrish (1937)

Issue: State minimum wage laws.
Holding: Upheld state minimum wage legislation; shifted the constitutional test toward deference to economic regulation under the states.
Significance: Contributed to the acceptance of broader economic regulation consistent with the welfare of workers; part of the broader New Deal jurisprudence shift.

Heart of Atlanta Motel v. United States (1964) and Katzenbach v. McClung (1964)

Heart of Atlanta Motel: Congress can regulate local commerce to prohibit racial discrimination in public accommodations if there is a substantial effect on interstate commerce.
Katzenbach v. McClung (Ogden’s BBQ): Similar reasoning; discrimination in restaurants affects interstate commerce due to supply and demand and travel patterns.
Significance: Expanded federal civil rights protections to private businesses under the Commerce Clause; reinforced federal role in desegregation of private establishments.

Burlington Industries v. Ellerth (1998)

Issue: Employer liability for supervisor sexual harassment.
Holding: Under the concept of vicarious liability, an employer can be liable for harassment by a supervisor unless the employer can prove a defense (e.g., the employer exercised reasonable care to prevent and correct promptly any harassing behavior, and the employee unreasonably failed to take advantage of preventive or corrective opportunities).
Significance: Strengthened employer responsibility and clarified protections against workplace harassment; introduced the framework for dealing with hostile work environment claims in employment law.

Kelo v. City of New London (2005)

Issue: Use of eminent domain to transfer land from one private owner to another for economic development.
Holding: The government’s taking of private property to sell for private development satisfies the Public Use requirement of the Fifth Amendment if the taking serves a public purpose.
Significance: Expanded interpretation of "public use"; sparked widespread debate about property rights and urban redevelopment.

United States v. Monroe (Monroe v. Pape) (1961)

Issue: Section 1983 claims against state actors for constitutional rights violations by law enforcement.
Holding: Expanded federal remedies and outlined that state actors can be liable for civil rights violations under 42 U.S.C. § 1983; clarified that private individuals could seek redress for state actions that violate constitutional rights when acting under color of state law.
Significance: Strengthened federal role in protecting civil rights from state abuse of power.

United States v. Nixon (1974)

Issue: Presidential privilege vs. judicial process during the Watergate investigations.
Holding: Executive privilege is not absolute; the president must comply with judicial subpoenas in criminal investigations when there is a demonstrated need for evidence relevant to a criminal proceeding.
Significance: Reinforced the system of checks and balances and asserted limits on executive privilege.

Boumediene v. Bush (2008)

Issue: Habeas corpus rights for detainees captured abroad and held at Guantanamo Bay; applicability of the Suspension Clause.
Holding: Detainees have the right to habeas corpus in U.S. courts regardless of where they are detained; the military detention of aliens at Guantanamo Bay is subject to judicial review.
Significance: Strengthened due process protections for non-citizens and extended constitutional protections to individuals held outside the continental United States.

Al Odah v. United States (Boumediene lineage, 2008)

Issue: Habeas rights for detainees; status of detainees across the legal process.
Holding: Aligns with Boumediene; detainees can challenge their detention in U.S. courts; protects core due process rights.

Brandenburg v. Ohio (1969)

Issue: Speech advocating extremist causes; First Amendment protection.
Holding: Speech can be restricted if it is directed to inciting or producing imminent lawless action and is likely to incite or produce such action; general advocacy is protected.
Significance: Establishes the “imminent lawless action” standard; strong protection for political speech, even controversial or extremist viewpoints, unless they incite immediate illegal acts.

Miller v. California (1973)

Issue: Obscenity and distribution of pornographic material.
Holding: Adopted the Miller test for obscenity: (a) whether the average person would find that the work appeals to prurient interest; (b) whether the work depicts or describes sexual conduct in a patently offensive way defined by state law; (c) whether the work, taken as a whole, lacks serious literary, artistic, political, or scientific value.
Significance: Clarified the boundaries of protected speech and established standards for obscenity regulation.

Texas v. Johnson (1989)

Issue: Flag burning as a form of political protest.
Holding: Flag burning constitutes protected symbolic speech under the First Amendment; government cannot prohibit desecration of the American flag merely as a form of political expression.
Significance: Affirmed robust protection for symbolic speech and political dissent.

New York Times Co. v. Sullivan (1964)

Issue: Defamation of a public official; standard for proving actual malice.
Holding: Public officials must prove actual malice to recover for defamation; the standard makes it harder to claim libel against the press about public issues.
Significance: Strengthened freedom of the press and clarified the evidentiary standard for evaluating defamatory statements about public figures.

MGM Studios, Inc. v. Grokster, Ltd. (2005)

Issue: Liability for peer-to-peer file-sharing and copyright infringement.
Holding: Companies enabling mass copyright infringement by users can be liable for inducing infringement; the distribution model matters for liability.
Significance: Reinforced copyright enforcement in the digital era and clarified distributor responsibility for user actions.

ABC, Inc. v. Aereo, Inc. (2014)

Issue: Aereo’s retransmission of broadcast television over the Internet without permission.
Holding: Aereo violated copyright by creating a public performance of broadcast content; not protected by the public performance doctrine.
Significance: Clarified copyright protections in evolving streaming technologies.

Kyllo v. United States (2001)

Issue: Use of thermal-imaging technology to detect heat patterns inside a home.
Holding: Government agents’ use of a device not in public use to explore inside the home constitutes a search under the Fourth Amendment and generally requires a warrant.
Significance: Emphasized the protection of home privacy against advanced surveillance technologies; impacts future technology-related searches.

Riley v. California (2014)

Issue: Whether police may search a cell phone without a warrant during an arrest.
Holding: Warrantless searches of electronic data on cell phones during arrest are unconstitutional; police must generally obtain a warrant to access data on a modern smartphone.
Significance: Recognized the unique and expansive privacy interests in digital data; shaped modern crime investigations and privacy protections.

Additional notes on overarching themes and connections

The primacy of the First Amendment: Several cases (Engel, Griswold, Roe, Casey, Texas v. Johnson, Citizens United) illustrate the varied protections and tensions between free expression, religious liberty, and privacy.
The role of the Fourteenth Amendment: Many landmark decisions (Brown, Roe, Obergefell, McDonald, Heller incorporation) rely on the Due Process or Equal Protection Clauses to apply rights to the states.
The balance between individual rights and government interests: From privacy and autonomy (Griswold, Roe, Casey) to public order and national security (Nixon, Boumediene, U.S. v. Al Odah);
The evolving scope of federal power: Commerce Clause (Heart of Atlanta, Katzenbach), federal oversight of civil rights, and the regulation of political speech (Citizens United).
Tests and standards to remember:
- Lemon test for Establishment Clause (secular purpose, neutrality, no excessive entanglement) [explicit use is rare in later Establishment Clause cases; see also Van Orden context].
- Strict scrutiny: often used for race-related admissions decisions (Gratz, Grutter) and for fundamental rights (
- Undue burden standard in abortion cases (Casey).
- Actual malice standard for libel (New York Times Co. v. Sullivan).
- Imminent lawless action test for obscenity and incitement (Brandenburg).
Ethical and practical implications:
- Balancing religious liberty with secular governance; education policy and scientific instruction; privacy vs. security; free expression vs. social harmony; economic regulation vs. individual rights.
Formulas and numerical references in these notes:
- There are no specific mathematical formulas in these cases. Key numerical references include years (e.g., 1962, 1968, 2005, 2010, 2014, 2015) and vote counts in some opinions (e.g., 5-4, 6-3, etc.). If you want, I can add a quick shelf with all the case years and notable vote splits in a separate appendix.