Brandenburg, a leader of a Ku Klux Klan group, was convicted under the Ohio Criminal Syndicalism statute for “advocat[ing] . . . the duty, necessity, or propriety of crime, sabotage, violence, or unlawful methods of terrorism as a means of accomplishing industrial or political reform” and for “voluntarily assembl[ing] with any society, group, or assemblage of persons formed to teach or advocate the doctrines of criminal syndicalism.” He was fined $1,000 and sentenced to one to 10 years’ imprisonment.
In 1927, this Court sustained the constitutionality of California’s Criminal Syndicalism Act, the text of which is quite similar to that of the laws of Ohio. Whitney v. California, 274 U. S. 357 (1927). The Court upheld the statute on the ground that, without more, “advocating” violent means to effect political and economic change involves such danger to the security of the State that the State may outlaw it. But Whitney has been thoroughly discredited by later decisions. These later decisions have fashioned the principle that the constitutional guarantees of free speech and free press do not permit a State to forbid or proscribe advocacy of the use of force or of law violation except where such advocacy is directed to inciting or producing imminent lawless action and is likely to incite or produce such action.
Accordingly, we are here confronted with a statute which, by its own words and as applied, purports to punish mere advocacy and to forbid, on pain of criminal punishment, assembly with others merely to advocate the described type of action. Whitney is therefore overruled.