447 U.S. 74 (1980)
Pruneyard Shopping Center v. Robins is a landmark case decided by the United States Supreme Court in 1980, which addresses the relationship between federal constitutional rights and state-granted rights.
Whether a state's constitution may require that private property owners allow individuals to engage in free speech activities, which are more expansive than those protected under the federal First Amendment, without violating the property owner's rights under the Fifth and Fourteenth Amendments.
The Supreme Court held that a state may, consistent with the federal Constitution, require that private property owners allow more expressive activities on their premises than those required by the federal Constitution, as long as it does not conflict with any federally protected property interests.
The United States Supreme Court affirmed the decision of the California Supreme Court, holding that California's constitutional protection of free speech on private property did not violate the federally protected property or free speech rights of the shopping center owners.
Pruneyard Shopping Center v. Robins is a significant case for law students because it illustrates the concept of state action and the dual sovereignty structure of the U.S. constitutional system. This case highlights the ability of states to augment federal rights and provides a framework for understanding how state constitutions can operate independently to offer broader protections for individual rights. It also raises important discussions regarding the balance between private property rights and free speech rights in the context of public accommodations.