PruneYard Shopping Center v. Robins
In PruneYard Shopping Center v. Robins, 447 U.S. 74 (1980), a unanimous U.S. Supreme Court upheld a state law requiring a shopping center owner to allow certain expressive activities by others on its property. The Court explained that there was little likelihood that the views of those engaging in the expressive activities would be identified with the owner, who remained free to disassociate himself from those views and who was "not ... being compelled to affirm [a] belief in any governmentally prescribed position or view." Id. at 88.
Justice William Rehnquist wrote the opinion and there were several concurrences.