Senn v. Tile Layers Protective Union

*472Mr. Justice Brandéis

delivered the opinion of the Court.

This case presents the question whether the provisions of the Wisconsin Labor Code which authorize giving publicity to labor disputes, declare peaceful picketing and patrolling lawful and prohibit granting of an injunction against such conduct, violate, as here construed and applied, the due process clause or equal protection clause of the Fourteenth Amendment.

The Labor Code occupies §§ 103.51 to 103.63' of the Wisconsin Statutes, 1935 (Wis. Laws, 1931, c. 376; Laws, 1935, c. 551, § 5). But only the following provisions of § 103.53 are…