Holding + Principle: Established judicial review; reinforced Article III and the Supremacy Clause.
Holding + Principle: Congress has implied powers under the Necessary and Proper Clause; states cannot tax the federal government due to the Supremacy Clause.
Holding + Principle: Speech creating a "clear and present danger" is not protected under the First Amendment – Freedom of Speech.
Holding + Principle: Racial segregation in public schools violates the 14th Amendment – Equal Protection Clause.
Holding + Principle: Courts can review redistricting cases; enforced "one person, one vote" under the 14th Amendment – Equal Protection Clause.
Holding + Principle: State-sponsored prayer in public schools violates the First Amendment – Establishment Clause.
Holding + Principle: The 6th Amendment right to counsel applies to state courts through the 14th Amendment – Selective Incorporation.
Holding + Principle: Students retain First Amendment – Freedom of Speech rights in school, including symbolic speech.
Holding + Principle: Government cannot exercise prior restraint on the press; protected under the First Amendment – Freedom of the Press.
Holding + Principle: Compulsory school laws violated the First Amendment – Free Exercise Clause when applied to Amish families.
Holding + Principle: Racial gerrymandering violates the 14th Amendment – Equal Protection Clause.
Holding + Principle: The Commerce Clause does not grant Congress the power to regulate guns in school zones; supports 10th Amendment – state powers.
Holding + Principle: The 2nd Amendment right to bear arms is incorporated to the states via the 14th Amendment – Selective Incorporation.
Holding + Principle: Corporate funding of independent political broadcasts in candidate elections cannot be limited under the First Amendment – Freedom of Speech.