Purpose: Essential cases for the AP Government exam; key understanding for the Free Response Question (FRQ).
Marbury v. Madison (1803)
Ruling: 4-0 for Marbury
Topic: Judicial Review
Importance: Established the principle of judicial review, enabling courts to strike down unconstitutional laws and executive actions.
McCulloch v. Maryland (1819)
Ruling: 6-0 for McCulloch
Topics: Federalism; Necessary and Proper Clause
Importance: Confirmed Congress's power to establish a national bank, emphasizing federal power over state interference via the Necessary and Proper Clause.
Schenck v. United States (1919)
Ruling: 9-0 for the United States
Topic: 1st Amendment - Speech during wartime
Importance: Established the "Clear and Present Danger" test, recognizing that national security can limit free speech.
Update: Revised by Brandenburg v. Ohio (1969).
Brown v. Board of Education (1954)
Ruling: 9-0 for Brown
Topic: Segregation; Equal Protection
Importance: Ruled "Separate but equal" is inherently unequal, mandating school desegregation "with all deliberate speed."
Baker v. Carr (1961)
Ruling: 6-2 for Baker
Topic: One person, one vote
Importance: Addressed that redistricting raises justiciable questions, allowing federal court intervention in redistricting disputes.
Engel v. Vitale (1962)
Ruling: 6-1 for Engel
Topic: 1st Amendment - Establishment of Religion
Importance: Prohibited state-sponsored prayers in public schools, even if not mandatory or tied to a specific religion.
Gideon v. Wainwright (1962)
Ruling: 9-0 for Gideon
Topic: 6th Amendment - Right to Counsel
Importance: Affirmed the right to legal counsel in criminal cases, integrating this right at the state level.
Griswold v. Connecticut (1965)
Ruling: 7-2 for Griswold
Topic: 14th Amendment - Right to Privacy
Importance: Recognized a right to privacy that prevents states from outlawing contraceptives for married couples.
Tinker v. Des Moines (1969)
Ruling: 7-2 for Tinker
Topic: 1st Amendment - Free Speech in Schools
Importance: Affirmed students retain their constitutional rights in school settings, limiting speech restrictions to those that materially disrupt education.
Brandenburg v. Ohio (1969)
Ruling: 8-0 for Brandenburg
Topic: 1st Amendment - Speech
Important Points: Prohibiting speech that is directed at inciting imminent lawless action, or is likely to incite such action.
New York Times Co. v. United States (1971)
Ruling: 6-3 for New York Times Co.
Topic: 1st Amendment - Freedom of the Press
Importance: Ensured that vague national security claims cannot override First Amendment rights, a win for press freedom.
Wisconsin v. Yoder (1972)
Ruling: 7-0 for Yoder
Topic: 1st Amendment - Free Exercise/Religion
Importance: Individual interests in religious practice outweigh state interests in mandating school attendance past eighth grade.
Roe v. Wade (1973)
Ruling: 7-2 for Roe
Topic: Right to Privacy
Importance: Established that a woman's right to an abortion is encompassed in the right to privacy protected by the 14th Amendment.
Shaw v. Reno (1993)
Ruling: 5-4 for Shaw
Topic: Gerrymandering; Equal Protection Clause
Importance: Ruled against racial gerrymandering; electoral district shapes cannot be bizarre solely for racial separation purposes.
United States v. Lopez (1995)
Ruling: 5-4 for Lopez
Topic: Commerce Clause and Federalism
Importance: Confirmed the federal government exceeded its powers under the Commerce Clause by regulating gun possession in school zones.
District of Columbia v. Heller (2008)
Ruling: 5-4 for Heller
Topic: 2nd Amendment - Right to Bear Arms
Importance: Affirmed an individual's right to possess firearms for self-defense; invalidated handgun bans in private homes.
Citizens United v. FEC (2010)
Ruling: 5-4 for Citizens United
Topic: Federal Elections and Campaign Finance
Importance: Allowed unlimited corporate funding of independent political broadcasts; defined corporations as persons under the First Amendment.
McDonald v. Chicago (2010)
Ruling: 5-4 for McDonald
Topic: 2nd Amendment - Right to Bear Arms
Importance: Extended Second Amendment protections to apply against state laws through the 14th Amendment.
Shelby County v. Holder (2013)
Ruling: 5-4 for Shelby County
Topic: Voting Rights Act
Importance: Struck down parts of the Voting Rights Act, repealing federal preclearance requirements.
Riley v. California (2014)
Ruling: 9-0 for Riley
Topic: 4th Amendment - Cell Phones
Importance: Affirmed the necessity of a warrant to search cell phones, recognizing their vast capacity to store private information.
Obergefell v. Hodges (2015)
Ruling: 5-4 for Obergefell
Topic: Gay Marriage Rights; Equal Protection
Importance: Established the right to marry as a fundamental right under the Due Process and Equal Protection Clauses of the 14th Amendment.