First Amendment court cases are the Supreme Court decisions that define what the government can and cannot do when Americans speak, publish, worship, gather, or complain to their leaders. The rulings below are the ones most often cited, grouped by the freedom each one addresses. Read together, they show a consistent pattern: the Court sets a high bar before the government can silence expression, and it draws narrow exceptions rather than broad ones.
Speech: What the Government Can and Cannot Punish
The modern rule for punishing speech that advocates lawbreaking comes from Brandenburg v. Ohio (1969). A Ku Klux Klan leader had been convicted under an Ohio criminal syndicalism statute for advocating political violence at a rally. The Court threw out the conviction and set the “imminent lawless action” test: speech promoting force or illegal conduct can only be punished if it is intended to produce immediate lawless action and is likely to actually produce it.1Justia. Brandenburg v. Ohio Talking about revolution in the abstract stays protected. This standard governs incitement cases today.
Brandenburg replaced the older “clear and present danger” test from Schenck v. United States (1919), which had upheld the conviction of a Socialist Party official who mailed leaflets urging resistance to the World War I draft.2Justia. Schenck v. United States Schenck is still taught, but the test it introduced no longer controls.
Students in Public Schools
Tinker v. Des Moines Independent Community School District (1969) brought the First Amendment into public schools. Teenagers had been suspended for wearing black armbands to protest the Vietnam War. The Court ruled 7-2 that students do not shed their constitutional rights at the schoolhouse door, and officials must show that the expression would substantially disrupt school operations before punishing it.3Justia. Tinker v. Des Moines Independent Community School District Quiet, passive protest that makes administrators uncomfortable is not enough.
The Court updated student speech law for social media in Mahanoy Area School District v. B.L. (2021). A high schooler posted vulgar messages about her school on Snapchat over a weekend, off campus, and was suspended from cheerleading. The Court held that schools have significantly less authority over off-campus student speech than on-campus speech, though schools can still act against serious bullying or genuine threats.4Justia. Mahanoy Area School District v. B. L.
Symbolic and Offensive Expression
Texas v. Johnson (1989), the flag-burning case, tested whether the First Amendment protects expression most people find offensive. Gregory Lee Johnson burned an American flag outside the 1984 Republican National Convention. He was convicted under a Texas flag-desecration statute, sentenced to a year in prison, and fined $2,000. The Supreme Court overturned the conviction, holding that the government cannot ban the expression of an idea simply because society finds it offensive.5Legal Information Institute. Texas v. Johnson
Snyder v. Phelps (2011) applied the same principle to protests at a military funeral. Members of the Westboro Baptist Church had picketed with signs the deceased soldier’s father found deeply hurtful. He won a jury verdict for intentional infliction of emotional distress. The Supreme Court reversed, holding that speech on matters of public concern in a public place receives special protection even when it is outrageous.6Legal Information Institute. Snyder v. Phelps
The Right Not to Speak
The First Amendment also protects against being forced to speak. In 303 Creative LLC v. Elenis (2023), a website designer challenged Colorado’s public accommodation law, arguing it would compel her to create wedding websites celebrating same-sex marriages despite her religious objections. The Court held that the First Amendment prohibits the government from forcing anyone to create expressive content communicating a message they disagree with.7Supreme Court of the United States. 303 Creative LLC v. Elenis The majority acknowledged that anti-discrimination laws serve compelling interests, but held that when such a law collides with free speech protections, the Constitution prevails.
Speech That Loses First Amendment Protection
A few narrow categories of speech can be punished, but the Court has set the bar high on each.
True Threats
Counterman v. Colorado (2023) set the standard for prosecuting threatening statements. The defendant had sent hundreds of Facebook messages to a musician, and Colorado convicted him under a stalking statute requiring only that a reasonable person would find the messages threatening. The Supreme Court said that was not enough. Prosecutors must prove the defendant was at least reckless about the threatening nature of the statements, meaning he consciously disregarded a substantial risk that the recipient would take the words as a threat of violence.8Justia. Counterman v. Colorado
Defamation
New York Times Co. v. Sullivan (1964) is the foundational defamation case. An Alabama official had sued the paper over a fundraising advertisement containing factual inaccuracies about police conduct during civil rights protests. The Court held that a public official cannot recover damages for a false statement about their official conduct without proving “actual malice,” meaning the speaker knew the statement was false or acted with reckless disregard for whether it was true.9Justia. New York Times Co. v. Sullivan
The Court drew a different line for private plaintiffs in Gertz v. Robert Welch, Inc. (1974). A magazine had falsely described a lawyer as a “Communist-fronter” and “Leninist.” The Court held that states may set their own fault standards for defamation claims by private individuals, as long as they do not impose strict liability. Private plaintiffs who prove fault under a standard less demanding than actual malice can recover only for proven actual injuries, not presumed or punitive damages.10Justia. Gertz v. Robert Welch, Inc.
Freedom of the Press
Press cases center on one especially strong protection: the government almost never gets to stop a publication before it happens.
Near v. Minnesota (1931) established that rule. A Minnesota law had allowed officials to shut down any newspaper they deemed “malicious, scandalous, and defamatory.” The Court struck down the law, holding that pre-publication censorship is precisely what the First Amendment was designed to prevent.11Justia. Near v. Minnesota Legal consequences after publication remain available; blocking the printing press in advance is a different matter.
The Pentagon Papers case, New York Times Co. v. United States (1971), tested that principle at its outer limit. The Nixon administration tried to block the New York Times and Washington Post from publishing classified documents on the government’s internal history of the Vietnam War. In a brief per curiam opinion, the Court held that the government had not met the heavy burden required to justify suppressing publication in advance.12Justia. New York Times Co. v. United States
Reporters and Grand Juries
Press freedom bends when it meets criminal investigations. In Branzburg v. Hayes (1972), reporters argued the First Amendment gave them a privilege to refuse grand jury subpoenas seeking confidential sources. The Court disagreed, holding that journalists have no constitutional testimonial privilege beyond the protections available to ordinary citizens.13Justia. Branzburg v. Hayes Many states have since enacted their own shield laws providing some reporter privilege as a matter of state law.
Corporate Political Spending
Citizens United v. Federal Election Commission (2010) extended First Amendment speech protections to corporate political spending. Federal law had prohibited corporations and unions from using general treasury funds for independent political broadcasts near elections. The Court struck that ban, ruling that political speech does not lose constitutional protection because its source is a corporation. The decision did not touch the ban on direct corporate contributions to candidates, and it left disclosure and disclaimer requirements intact.14Justia. Citizens United v. FEC
Freedom of Religion
The First Amendment treats religion through two clauses. The Establishment Clause bars the government from promoting religion. The Free Exercise Clause protects the right to practice a faith without government interference.
Establishment
Engel v. Vitale (1962) drew a hard line against government-written prayers. New York’s Board of Regents had composed a short, nondenominational prayer and directed public schools to open the day by reciting it, with an opt-out. The Court ruled 6-1 that the prayer violated the Establishment Clause. It is not the government’s role to compose prayers for citizens to recite, regardless of how generic the prayer is or whether participation is voluntary.15Justia. Engel v. Vitale
Free Exercise
Wisconsin v. Yoder (1972) pitted a general law against sincere religious practice. Three Amish families had refused to send their children to school past eighth grade and were fined five dollars each under the state’s compulsory attendance law. The Court sided with the parents, holding that the state’s interest in universal education did not outweigh the families’ right to direct the religious upbringing of their children.16Justia. Wisconsin v. Yoder
Hosanna-Tabor Evangelical Lutheran Church and School v. EEOC (2012) expanded religious autonomy over hiring and firing. A teacher fired after a disability leave dispute filed a claim under the Americans with Disabilities Act. The Court unanimously held that the First Amendment creates a “ministerial exception” barring the government from interfering with a religious organization’s choice of who serves as its ministers.17Justia. Hosanna-Tabor Evangelical Lutheran Church and School v. EEOC The exception applies to employment discrimination claims; the Court left open whether it extends to other kinds of lawsuits.
Assembly and Petition
The right to gather in public and press grievances to the government is where the First Amendment is most visible. Protests, marches, and rallies all rest on it.
De Jonge v. Oregon (1937) extended peaceful assembly protections to state government action. The defendant had been sentenced to seven years under Oregon’s criminal syndicalism law for helping run a peaceful meeting organized by the Communist Party. The Court overturned the conviction, holding that peaceful assembly for lawful discussion cannot be treated as a crime regardless of who organized the gathering.18Legal Information Institute. De Jonge v. State of Oregon
Edwards v. South Carolina (1963) tested the same principle during the civil rights movement. One hundred eighty-seven Black students had marched to the South Carolina statehouse grounds to protest racial discrimination and were convicted of breach of the peace. The Supreme Court reversed, holding that the government cannot suppress peaceful First Amendment activity simply because bystanders might react negatively.19Justia. Edwards v. South Carolina A hostile audience is not a reason to silence a speaker.
Time, Place, and Manner
The government keeps some authority over the logistics of public gatherings. Ward v. Rock Against Racism (1989) set the test. New York City had required performers in Central Park’s bandshell to use a city-provided sound system and technician. The Court upheld the rule and laid out three requirements any content-neutral restriction on expressive activity must satisfy: it must be unrelated to the content of the speech, narrowly tailored to serve a significant government interest, and leave open alternative channels for communication.20Justia. Ward v. Rock Against Racism Permit rules, noise limits, and protest zones can survive if applied evenhandedly and without targeting viewpoints.
The First Amendment Online
Two 2024 decisions addressed government power, social media platforms, and user speech, though neither delivered a sweeping rule.
Moody v. NetChoice (2024) reviewed Florida and Texas laws restricting how social media companies moderate user content. Both statutes aimed to prevent platforms from removing or downranking posts based on political viewpoint. The Court vacated the lower court decisions and sent the cases back, finding that neither appellate court had properly analyzed the laws’ full scope. The majority made clear that platforms engaged in expressive editorial choices receive First Amendment protection, and the government cannot force a private platform to host speech it wants to remove to “balance” the marketplace of ideas.21Supreme Court of the United States. Moody v. NetChoice, LLC
Murthy v. Missouri (2024) addressed the opposite question: whether government officials violated the First Amendment by pressuring social media companies to remove content about COVID-19 and elections. The Court dismissed the case on standing grounds, holding that plaintiffs could not trace their specific content removals to government coercion rather than the platforms’ own moderation choices.22Supreme Court of the United States. Murthy v. Missouri The decision left unresolved when government persuasion crosses into unconstitutional coercion.
How First Amendment Rights Get Enforced
The primary tool for holding a government official accountable for a constitutional violation is 42 U.S.C. ยง 1983, a federal statute allowing anyone deprived of their rights by someone acting under government authority to sue for damages or an injunction.23Office of the Law Revision Counsel. 42 USC 1983 – Civil Action for Deprivation of Rights The statute covers police officers who arrest protesters without cause, school officials who censor student expression, and other government actors who violate constitutional rights while performing official duties.
The main obstacle in these lawsuits is qualified immunity, a court-created doctrine that shields government officials from personal liability unless the right they violated was “clearly established” when they acted. In practice, plaintiffs often must show not just a violation but a prior court decision with nearly identical facts finding the same conduct unconstitutional. Officials who acted reasonably but mistakenly are generally protected, and courts resolve qualified immunity questions as early as possible, sometimes before any discovery. The doctrine protects only individual officials, not the government itself, so lawsuits seeking policy changes through injunctions rather than personal damages can sometimes avoid it.