Railway Mail Assn. v. Corsi

Background

A railway mail workers’ union that limited membership to white men and American Indians challenged New York’s law that forbids labor organizations from denying membership or equal treatment because of race, color, or creed. State officials threatened enforcement after a branch tried to admit non‑white applicants and the union refused. Lower New York courts differed, but the New York Court of Appeals held the association was a labor organization subject to the law.

Reasoning

The Supreme Court considered whether this dispute was a real case and decided it was. The Court found the association did in fact act like a labor organization: it handled grievances, sought better conditions, affiliated with the American Federation of Labor, and claimed credit for wage and benefit improvements. The Court rejected the union’s claims that the state law violated its rights under the Fourteenth Amendment and that federal postal authority preempted the law. The Justices explained a state may prevent racial or religious exclusion by organizations that represent employees and that the statute did not interfere with the operation or management of the federal mail service.

Real world impact

The ruling means private labor organizations that represent workers — including unions with federal employees as members — can be required to end race or creed membership bans under state anti‑discrimination laws. The decision affirms state power to regulate such private organizations so long as Congress has not clearly taken the field.

Dissents or concurrances

Justice Frankfurter wrote a concurrence emphasizing that the State may outlaw racial or religious discrimination in unions; Justice Rutledge joined the result.