Who does the First Amendment say may not abridge freedom of speech? — A clear explainer

What the First Amendment actually says

Text and immediate meaning

The First Amendment, ratified in 1791 as part of the Bill of Rights, bars Congress from making laws “abridging the freedom of speech,” and that precise wording is the starting point for U.S. free-speech law; the authoritative text is available from the National Archives National Archives Bill of Rights transcript and our First Amendment explainer.

The phrase “abridging the freedom of speech” is short but legally weighty. Courts begin with the Amendment’s text when they evaluate challenges, treating the prohibition on Congressional legislation as the initial constitutional command that later cases interpret and apply.

Why the exact wording matters in legal cases

Because the Amendment speaks specifically of Congress and of laws that abridge expression, early legal disputes focused on whether particular statutes, ordinances, or federal acts fit that description, and courts emphasize textual wording when identifying the class of actors and actions covered by the clause National Archives Bill of Rights transcript.

Legal analysis often starts with the text, then moves to precedent and doctrine to decide whether a challenged measure amounts to an abridgment and whether the defendant is a government actor covered by the Amendment.

How the First Amendment originally applied: federal limits

Early federal-only interpretation

The original constitutional design treated the First Amendment as a limitation on Congress and on the federal government, meaning that individuals challenging federal statutes or federal officials typically relied directly on the Amendment’s text when seeking relief under the Constitution National Archives Bill of Rights transcript.

In practice, this meant challenges usually involved federal laws, prosecutions under federal statutes, or direct acts of Congress; those situations were the natural arenas for the Amendment’s protections during the early decades after ratification.

Examples of federal action that abridge speech

Examples include federal statutes that criminalize certain communications, prosecutions under federal law, or regulations issued by federal agencies; when such measures are challenged, courts examine whether the law or conduct effectively abridges speech and whether the government interest justifies a restriction.

When courts consider these cases they apply established standards to decide whether an asserted federal limitation crosses the constitutional line drawn by the First Amendment.

When courts consider these cases they apply established standards to decide whether an asserted federal limitation crosses the constitutional line drawn by the First Amendment.

How the First Amendment came to limit states: incorporation and Gitlow

The Fourteenth Amendment’s role

The post-Civil War Fourteenth Amendment, ratified in 1868, provided the constitutional basis for applying certain federal rights against state governments, and that shift made it possible for First Amendment protections to reach state and local actors as well National Archives Fourteenth Amendment text.

In constitutional practice, the Fourteenth Amendment’s Due Process and Equal Protection provisions became the vehicle by which the Supreme Court examined whether particular federal rights are fundamental enough to bind the states, leading to the doctrine known as selective incorporation.

Gitlow v. New York and selective incorporation

In Gitlow v. New York (1925) the Supreme Court recognized that the First Amendment’s protections reach state governments through the Fourteenth Amendment, starting the modern incorporation doctrine that treats many, though not necessarily all, federal rights as applicable to the states Gitlow v. New York opinion.

Gitlow’s conclusion was doctrinal: the Court held that states could not ignore essential freedoms protected by the Bill of Rights, and later cases refined how incorporation applies to speech and press protections specifically.

Today’s practical rule: who government actors include

Federal, state, and local officials

After incorporation, the First Amendment restricts federal, state, and local government actors and their officials from abridging speech; that means legislatures, executive agencies, law enforcement officers, and other public officials are normally constrained by free-speech protections when they act to limit expression Gitlow v. New York opinion and readers can consult a recent Supreme Court opinion in PDF from the Court for modern examples.

In concrete terms, laws passed by a state legislature, orders from a city government, or actions taken by public-school administrators can be challenged under the First Amendment if they abridge expression in ways the Constitution forbids.

Public institutions and officers

How courts analyze those situations depends on the context – for example whether the setting is a public forum, whether the speech is student speech, or whether content-based restrictions are at issue – and precedents guide the particular standard applied.

The state-action doctrine: when private conduct becomes government action

What ‘state action’ means

The state-action doctrine asks whether conduct by a private person or entity is sufficiently connected to the government that the Constitution should apply; if private behavior is fairly attributable to the state, then constitutional limits may follow, but ordinary private conduct generally falls outside the First Amendment’s reach.

Whether a private actor’s behavior counts as state action is a fact-specific inquiry courts decide with reference to precedent and particular tests that look at government compulsion, close cooperation, or public function assumptions; see a Harvard Law Review discussion on tests for state action.

Jackson v. Metropolitan Edison Co. and limits on treating private conduct as state action

Jackson v. Metropolitan Edison Co. illustrates the boundary the Court enforces: the decision holds that not all actions involving private companies become state action merely because the company performs services for or is regulated by the government, and courts therefore demand a close factual showing before treating private conduct as constitutional state action Jackson v. Metropolitan Edison Co. opinion.

Because of Jackson and related decisions, private employers, private platforms, and other non-governmental organizations typically set their own rules without raising First Amendment questions unless plaintiffs can show a sufficient governmental connection to make the private conduct effectively governmental.

Categories of speech the government can regulate

Incitement, true threats, obscenity

The Supreme Court recognizes limited categories of speech that governments may regulate without violating the First Amendment, including incitement to imminent lawless action, true threats, and certain obscenity, and courts apply distinct standards to each category Brandenburg v. Ohio opinion.

Those categories are exceptions to the broad protection for expression, so when a government actor restricts speech it must fit within an established exception or survive a demanding constitutional test appropriate to the nature of the restriction.

How courts distinguish protected from unprotected speech

For example, Brandenburg established that the state may punish advocacy only when it is directed to inciting imminent lawless action and is likely to produce such action, a specific imminence and intent test that narrows the circumstances where incitement can be penalized Brandenburg v. Ohio opinion.

Court decisions also parse threatening statements and obscenity with their own legal tests, and courts balance the government’s interest against the high value placed on free expression when applying those standards.

Prior restraints and the press: Near v. Minnesota

What a prior restraint is

A prior restraint is a government action that stops speech before it occurs, such as a court order preventing publication, and courts treat such restraints with special skepticism because they block expression at the source rather than addressing harmful consequences after publication.

Because prior restraints suppress speech preemptively, courts demand strong justification before allowing them and often rule that only the most compelling government interests can sustain such a restriction.

Near v. Minnesota’s significance for government censorship

Near v. Minnesota is a foundational case holding that state officials may not impose prior restraints on the press, and that principle has long shaped judicial reluctance to permit pre-publication censorship by government actors Near v. Minnesota opinion.

To help readers review primary materials on prior restraints and key opinions, see this compact tool spec that points to the relevant public sources.

Where private platforms, employers and organizations fit in

Private content moderation and employer rules

Private platforms, employers, and civic organizations typically set their own rules for speech and conduct on their services or premises, and those private moderation or disciplinary choices are generally not governed by the First Amendment unless state action is shown Jackson v. Metropolitan Edison Co. opinion; for recent discussion of government pressure on platforms see the National Constitution Center coverage about the Court’s treatment of government pressure.

That practical rule means a social media company or a private employer can often remove or discipline speech under its terms, while the constitutional bar applies when government officials themselves act to restrict expression.

When private actions might trigger constitutional limits

Courts examine whether government pressure, funding conditions, regulatory compulsion, or close cooperation transforms private decisions into state action; outcomes turn on the facts and on which tests courts apply in a particular case.

Because the law here is evolving with new technologies and forms of government interaction with private platforms, courts will assess these disputes through the lens of state-action doctrine and existing precedents.

Practical scenarios: what counts as abridgment in everyday life

Schools, public forums, protests

Public schools, parks, and sidewalks are classic examples of government-controlled settings where speech restrictions implicate the First Amendment, and courts analyze whether a restriction is content-based, viewpoint-based, or reasonable under forum doctrine when deciding if an abridgment has occurred Gitlow v. New York opinion.

At a school, for instance, the balance between student speech rights and school authority depends on the context and the level of disruption or safety concerns alleged by the institution.

Employer policies and private platform moderation

By contrast, private employers and private online platforms usually apply their own speech rules without First Amendment constraints, though an employee or user might challenge an action under statutory law or, in narrow circumstances, argue that the private decision is effectively governmental for constitutional purposes Jackson v. Metropolitan Edison Co. opinion.

Readers should recognize that whether a given action counts as abridgment depends on who acted, the context, and which doctrinal test applies, and outcomes are often highly fact-specific.

How courts decide: tests, standards and burdens

Strict scrutiny and content-based restrictions

When a government restriction is content-based, courts typically apply the most rigorous review, often described as strict scrutiny, requiring the government to show a compelling interest and narrow tailoring to sustain the law, making content-based abridgements difficult to uphold.

That framework aims to protect core expressive activity by demanding strong justification when the government singles out speech because of its content or message.

Imminence tests and other judicial standards

For categories like incitement, Brandenburg’s imminence and likelihood test governs whether speech advocating illegal acts is punishable, and courts apply specialized standards depending on the assertion made by the government Brandenburg v. Ohio opinion.

Before courts apply any of those standards, they often decide the threshold question of whether the defendant’s conduct is subject to constitutional limits under the state-action doctrine.

Common mistakes and misunderstandings to avoid

Assuming the First Amendment binds private companies

A frequent error is assuming that the First Amendment restricts private companies in the same way it does the government; the Amendment generally binds governmental actors, not ordinary private parties, and that distinction matters for assessing alleged abridgments Jackson v. Metropolitan Edison Co. opinion.

To verify claims about abridgment, check whether the actor is a government official or a private entity and whether courts have treated the specific conduct as state action in similar circumstances.

Treating slogans or campaign claims as legal facts

Another common pitfall is treating political slogans or press statements as legal conclusions; readers should consult primary sources – constitutional text and controlling opinions – rather than relying on broad claims about what the law requires.

Use this short checklist when evaluating an abridgment claim: identify the actor, find the governing forum or context, check whether the speech fits any unprotected category, and review relevant precedents to see which legal test applies.

Where to read the primary sources and check claims

Official texts and Supreme Court opinions

Start with the National Archives for constitutional texts and with reliable repositories of Supreme Court opinions such as Justia for case law; those primary sources let readers confirm the exact language and holdings that courts rely on National Archives Bill of Rights transcript and our constitutional rights page.

Key cases cited in this article, including Gitlow, Brandenburg, Jackson, and Near, are available on official opinion pages where readers can review facts, holdings, and the courts’ reasoning directly Gitlow v. New York opinion.

How to read a case summary

When reading an opinion, separate the factual background from the legal holding and the court’s reasoning; focus on the holding to understand the rule the court announced, and use the reasoning to see how the court applied law to facts.

Consult the cited majority opinion for the controlling rule, and look to concurring or dissenting opinions only for additional perspectives that may be persuasive in future cases.

Conclusion: key takeaways for voters and readers

A concise summary

The First Amendment’s text prohibits Congress from making laws abridging speech, and incorporation through the Fourteenth Amendment and decisions such as Gitlow extended those protections to state and local governments, so public actors are generally bound by free-speech limits Gitlow v. New York opinion.

Private actors are normally outside the Amendment unless their conduct is fairly attributable to the state under the state-action doctrine, as the Court’s treatment in Jackson shows, and courts apply specific tests to decide those questions Jackson v. Metropolitan Edison Co. opinion.

What remains unsettled

Ongoing legal questions include when government pressure or entanglement with private platforms crosses the line into state action, and how newer forms of coordination will be treated by courts in future cases.

Readers should check the primary sources cited here and follow new opinions for developments, since outcomes often depend on case-specific facts and evolving doctrinal tests.