Prior Restraint

Prior restraint is government action that blocks speech or publication before it happens, and in AP Gov it matters because the Supreme Court treats it with a "heavy presumption" of unconstitutionality, even in national security cases like New York Times v. United States (1971).

Verified for the 2027 AP US Government examLast updated June 2026

What is Prior Restraint?

Prior restraint is censorship before the fact. Instead of punishing you after you say or publish something illegal, the government stops the speech from ever reaching the public. Think of an injunction ordering a newspaper not to print a story. That's the classic form.

The Supreme Court hates this. Under the First Amendment's free press protections, the Court applies a heavy presumption against prior restraint, meaning the government almost always loses when it tries to stop publication in advance. The CED puts it directly: the Court bolstered freedom of the press by affirming this presumption "even in cases involving national security." The two cases that built this doctrine are Near v. Minnesota (1931), which first ruled prior restraint unconstitutional except in extreme circumstances, and New York Times v. United States (1971), the Pentagon Papers case, where the government couldn't block publication of a classified Vietnam War study because it failed to prove publication would cause direct, immediate harm.

Why Prior Restraint matters in AP Gov

Prior restraint lives in Unit 3: Civil Liberties and Civil Rights, specifically Topic 3.4 (Freedom of the Press). It directly supports learning objective AP Gov 3.4.A, which asks you to explain how the Supreme Court's First Amendment interpretation reflects a commitment to individual liberty. Prior restraint is your best evidence for that commitment. When the government claimed national security required blocking the Pentagon Papers, the Court still said no. That's about as strong a statement of individual liberty over government power as the Court makes.

It also connects to the bigger Unit 3 tension you'll see everywhere: government power versus individual rights. Prior restraint cases show the Court drawing the line heavily in favor of the individual (and the press), unlike some other speech doctrines where the government gets more room.

How Prior Restraint connects across the course

New York Times v. United States (1971) (Unit 3)

This is a required Supreme Court case, and prior restraint is the entire point of it. The Nixon administration tried to stop publication of the Pentagon Papers, and the Court ruled the government hadn't met the heavy burden needed to justify prior restraint, even with national security on the line.

Clear and Present Danger Test (Unit 3)

Both doctrines decide when the government can limit speech, but they work at different moments. Clear and present danger (from Schenck) is about punishing speech after it happens, while prior restraint is about blocking speech before it happens. The Court tolerates after-the-fact punishment far more than advance censorship.

Free Speech and Symbolic Expression (Unit 3)

Prior restraint is one piece of the larger First Amendment puzzle in Topics 3.2-3.4. Cases like Tinker and Cohen v. California show the Court protecting expression in different contexts, and prior restraint doctrine extends that protection to the press specifically.

Defamation Laws (Unit 3)

Defamation shows the flip side of the timing distinction. You can be sued for libel after publishing false, harmful statements, but the government still can't stop you from publishing in the first place. Liability after the fact is constitutional; censorship before the fact almost never is.

Is Prior Restraint on the AP Gov exam?

Prior restraint shows up most often in multiple-choice questions tied to Near v. Minnesota and New York Times v. United States. Stems typically ask what precedent Near established, why the Court ruled against the government in the Pentagon Papers case, or how the Court treats prior restraint when national security is involved. The answer pattern is consistent: there's a heavy presumption against prior restraint, and the government must prove direct, immediate harm to overcome it.

Since New York Times v. United States is one of the 15 required SCOTUS cases, prior restraint is fair game for the SCOTUS comparison FRQ. You could be asked to compare it to another First Amendment case and explain how the reasoning in one applies to the other. Know the holding, know the "heavy presumption" language, and be ready to connect it to LO 3.4.A's theme of the Court protecting individual liberty against government power.

Prior Restraint vs Subsequent punishment (punishing speech after the fact)

Prior restraint stops speech before it happens; subsequent punishment penalizes it afterward. The Constitution treats these very differently. The government almost never wins a prior restraint case, but it can punish speech after publication through libel suits, obscenity laws, or incitement prosecutions. So the New York Times couldn't be blocked from printing the Pentagon Papers, even though publishing certain material could theoretically lead to legal consequences later. If an MCQ describes the government blocking publication in advance, that's prior restraint. If it describes a lawsuit or prosecution after publication, it's not.

Key things to remember about Prior Restraint

  • Prior restraint is government censorship that blocks speech or publication before it occurs, and the Supreme Court treats it as presumptively unconstitutional.

  • Near v. Minnesota (1931) established that prior restraint violates the First Amendment except in extremely limited circumstances.

  • In New York Times v. United States (1971), the Court rejected prior restraint even for classified national security documents because the government couldn't prove direct, immediate harm.

  • The Court's "heavy presumption against prior restraint" is direct CED evidence for the claim that First Amendment interpretation reflects a commitment to individual liberty (LO 3.4.A).

  • Prior restraint blocks speech in advance, which is different from punishing speech after the fact through libel suits or incitement prosecutions, both of which the Court allows more readily.

Frequently asked questions about Prior Restraint

What is prior restraint in AP Gov?

Prior restraint is government action that prevents speech or publication before it happens, like a court order blocking a newspaper story. The Supreme Court applies a heavy presumption against it, established in Near v. Minnesota (1931) and reinforced in New York Times v. United States (1971).

Can the government ever use prior restraint?

Almost never, but yes in theory. Near v. Minnesota left the door open for extreme cases, like publishing troop movements during wartime. In practice the government rarely meets the burden, which is why it lost the Pentagon Papers case even with national security claims.

Did the government win New York Times v. United States?

No. The Court ruled 6-3 against the Nixon administration in 1971, holding that the government failed to justify prior restraint of the Pentagon Papers. The case is one of the 15 required SCOTUS cases in AP Gov.

What's the difference between prior restraint and the clear and present danger test?

Prior restraint blocks speech before it happens, while the clear and present danger test (from Schenck v. United States) is a standard for punishing speech after it occurs. The Court is far more willing to allow after-the-fact punishment than advance censorship.

Is prior restraint the same as censorship?

Prior restraint is a specific type of censorship, the kind that happens before publication. Other forms of speech regulation, like defamation lawsuits or obscenity prosecutions, happen after the fact and face a lower constitutional bar.