In December 1965, a group of students in Des Moines, Iowa decided to wear black armbands to school to protest the war in Vietnam. The school principals heard about the plan and adopted a rule: any student who wore an armband would be asked to take it off, and suspended if they refused. Two days later three students were sent home.
The Supreme Court has been drawing the line between a student's right to speak and a school's right to run its classrooms ever since. Five decisions mark where it stands, from the armbands in 1969 to a Snapchat post in 2021. The question this post answers is simple: when can a public school punish what a student says?
Armbands: the starting point
Tinker v. Des Moines Independent Community School District (1969), decided February 24, 1969. Mary Beth Tinker, her brother John and their friend Christopher Eckhardt wore the armbands, were suspended, and did not return until the planned protest period had ended. Justice Fortas wrote for the Court that "it can hardly be argued that either students or teachers shed their constitutional rights to freedom of speech or expression at the schoolhouse gate."
The school had acted out of fear of a disturbance. The Court held that was not enough: "undifferentiated fear or apprehension of disturbance is not enough to overcome the right to freedom of expression." A school can restrict student speech only if its conduct would "materially and substantially interfere with the requirements of appropriate discipline in the operation of the school." Quiet, passive armbands did not meet that test.
Three decisions that gave schools more room
Bethel School District No. 403 v. Fraser (1986), decided July 7, 1986. Matthew Fraser gave a speech nominating a fellow student for a student elective office, at a school assembly held during school hours. Many in the audience were 14 years old. The speech was full of sexual innuendo. The school suspended Fraser for three days and removed his name from the list of candidates to speak at graduation.
Chief Justice Burger wrote that "the constitutional rights of students in public school are not automatically coextensive with the rights of adults in other settings." Unlike the armbands in Tinker, the punishment here "was unrelated to any political viewpoint." The First Amendment, the Court held, did not stop a school from deciding that a vulgar and lewd speech "would undermine the school's basic educational mission." Notably, the Court did not apply the Tinker disruption test.
Hazelwood School District v. Kuhlmeier (1988), decided January 13, 1988. The principal of a school in St. Louis County, Missouri removed two pages from the student newspaper, Spectrum, which was written in a journalism class. One page had an article on students' experiences with pregnancy, the other on the impact of divorce. The principal worried that the pregnant students might be identified, and that a parent named in the divorce article had not been given a chance to respond.
Justice White, for the Court, held that educators do not violate the First Amendment "by exercising editorial control over the style and content of student speech in school-sponsored expressive activities so long as their actions are reasonably related to legitimate pedagogical concerns." The paper was part of the curriculum and the school had not opened it to the public, so the principal could regulate it in any reasonable manner. The Court distinguished Tinker, which had asked whether a school must tolerate a student's own speech.
Morse v. Frederick (2007), decided June 25, 2007. During the 2002 Olympic Torch Relay in Juneau, Alaska, the principal let students out of class to watch the relay in the street in front of the school. Joseph Frederick, a senior, and his friends unfurled a 14-foot banner reading "BONG HiTS 4 JESUS." The principal, Deborah Morse, took it down and suspended him for 10 days.
Chief Justice Roberts, for a five-justice majority, held that a principal may restrict student speech at a school event "when that speech is reasonably viewed as promoting illegal drug use." The Court noted that deterring drug use among schoolchildren is an "important—indeed, perhaps compelling" interest. It treated the relay as a school event, so the case was not about off-campus speech, as many summaries claim. Justice Alito, joined by Justice Kennedy, wrote separately that he joined the opinion on the understanding that it goes no further than to hold that a school may restrict speech a reasonable observer would read as advocating illegal drug use, and that it provides "no support for any restriction of speech that can plausibly be interpreted as commenting on any political or social issue."
Snapchat and the off-campus question
Mahanoy Area School District v. B.L. (2021), decided June 23, 2021. B.L. failed to make her high school's varsity cheerleading squad. That weekend, at a convenience store, she posted two images on Snapchat. One carried a caption with a vulgar message about school, softball and cheerleading. The school suspended her from the junior varsity squad for the coming year. The Third Circuit held that Tinker did not apply to off-campus speech at all.
Justice Breyer, for the Court, rejected that rule. The "special characteristics" that give schools extra license "do not always disappear" when speech happens off campus, and he listed bullying, threats and breaches of school security as examples. But he named three features of off-campus speech that shrink a school's leeway: a school will rarely stand in the place of a parent, regulating speech both on and off campus could cover everything a student says in a 24-hour day, and "America's public schools are the nurseries of democracy." The Court held that the school violated B.L.'s rights. Her posts reached only a circle of Snapchat friends, and some cheerleaders being "upset" did not meet Tinker's standard.
The Court did not set a broad rule for what counts as off campus. It said "little more" than that the leeway is diminished.
What this adds up to
The cases do not form one test. Tinker protects a student's own, non-disruptive speech, especially political speech. Fraser, Hazelwood and Morse each carve out an area where a school has more room: lewd speech at school, school-sponsored speech, and speech reasonably seen as promoting drug use at a school event. Mahanoy keeps Tinker in play outside the school gate but says schools get less leeway there. A student's age, the setting and who is speaking for the school all matter.
For a parent or a student, that means the first question is rarely "is it speech?" It is "where was it, whose platform was it, and what did the school say it would cost?" The answer for a Snapchat post from a convenience store is not the answer for a banner at a school-supervised event.
Sources
- Tinker v. Des Moines Independent Community School District (1969), 393 U.S. 503: Library of Congress, U.S. Reports
- Bethel School District No. 403 v. Fraser (1986), 478 U.S. 675: Library of Congress, U.S. Reports
- Hazelwood School District v. Kuhlmeier (1988), 484 U.S. 260: Library of Congress, U.S. Reports
- Morse v. Frederick (2007), 551 U.S. 393: Library of Congress, U.S. Reports
- Mahanoy Area School District v. B.L. (2021), 594 U.S. 180: Supreme Court of the United States
Updated November 2026.
This post was rewritten with AI (Claude) and reviewed by an editor before publication.
