Shurtleff v. Boston

In Shurtleff v. Boston, the City of Boston allowed private groups to hold flag-raising events on a City Hall flagpole, approving hundreds of applications without denial. Camp Constitution, a Christian organization led by Harold Shurtleff, sought to raise a Christian flag. The city refused the request, citing potential violation of the Establishment Clause. The Supreme Court unanimously ruled that Boston's flag-raising program did not constitute government speech but rather a public forum for private expression. Consequently, the exclusion of the religious flag based on its content and viewpoint violated the First Amendment's Free Speech Clause. The decision clarified that when a government creates a limited public forum, it cannot discriminate against religious viewpoints.

The U.S. Supreme Court unanimously reversed the First Circuit's ruling. The Court held that Boston's flag-raising program was not government speech but a limited public forum for private expression. Refusing to fly the Christian flag constituted viewpoint discrimination that violated the Free Speech Clause of the First Amendment.

Whether Boston's refusal to fly a Christian flag on a City Hall flagpole, while allowing other private flags, constituted impermissible viewpoint discrimination in violation of the First Amendment's Free Speech Clause, or whether the flags represented government speech immune from such constitutional scrutiny.

The ruling significantly strengthened protections for religious speech in public forums, clarifying that once a government opens a space for diverse private expression, it cannot exclude speakers solely based on a religious viewpoint. It reined in the expansion of the government speech doctrine, compelling municipalities to review their public display policies and address the balance between free speech and the Establishment Clause.