Private citizens organizing a public demonstration have the right to exclude groups whose message they disagree with from participating. Decided June 19, 1995 (argued April 25, 1995). Opinion of the Court: David Souter → go there Applied: the First Amendment → go there Topic: Freedom of association. Hurley v. Irish-American Gay, Lesbian, and Bisexual Group of Boston, 515 U.S. 557 (1995), is a landmark decision of the U.S. Supreme Court regarding free speech rights, specifically the rights of groups to determine what message their activities convey to the public. The Court held that a state may not compel private citizens organizing a public demonstration to include groups who impart a message the organizers do not want their demonstration to present, even if the state's intent was to prevent discrimination. Wiki link