Avco Corp. v. Machinists
In Avco Corp. v. Machinists, 390 U.S. 557, 88 S.Ct. 1235, 20 L.Ed.2d 126 (1968), an employer brought an action in state court to enjoin a union from striking in violation of a collective bargaining agreement.
After a preliminary injunction was granted, the union removed the action to federal court where the injunction was dissolved.
In affirming the removal, the Court held that "the preemptive force of Sec. 301 is so powerful as to displace entirely any state cause of action 'for violation of contracts between an employer and a labor organization.' " Franchise Tax Bd. v. Construction Laborers Vacation Trust, 463 U.S. 1, 23, 103 S.Ct. 2841, 2853, 77 L.Ed.2d 420 (1983)