Coronado Coal Company

Supreme Court Reverses Coronado Decision, Opens Unions to Antitrust Liability

| Importance: 9/10

The Supreme Court unanimously reverses its 1922 Coronado decision, ruling that the United Mine Workers local union violated the Sherman Antitrust Act by conspiring to restrain interstate commerce in coal. After the Court’s first ruling favored the union by finding insufficient evidence of …

William Howard Taft U.S. Supreme Court United Mine Workers of America Coronado Coal Company labor-suppression judicial-capture anti-union antitrust
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Supreme Court Rules Unincorporated Unions Can Be Sued in Coronado Coal Case

| Importance: 7/10

The Supreme Court rules in United Mine Workers v. Coronado Coal Co. that unincorporated labor unions can be sued in federal court as legal entities, establishing a precedent that exposes unions to potentially devastating civil liability. The case arises from Arkansas’s Sebastian County Union …

William Howard Taft U.S. Supreme Court United Mine Workers of America Coronado Coal Company labor-suppression judicial-capture anti-union antitrust
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