Justice Jackson wrote for the majority reversing a decision by the New York Court of Appeals, that had upheld an injunction against the Baker & Pastry Drivers & Helpers Local 802 for picketing businesses, which used non union drivers. The picketing was reasonable, the placards held were truthful, and there was no evidence that continued picketing would lead to violence, force or coercion. For those reasons the court found the injunction to be an unconstitutional limitation on the union’s rights to exercise free speech.