Lodge 76, International Ass'n of MacHinists & Aerospace Workers v. Wisconsin Employment Relations Commission

The question to be decided in this case is whether federal labor policy pre-empts the authority of a state labor relations board to grant an employer covered by the National Labor Relations Act an order enjoining a union and its members from continuing to refuse to work overtime pursuant to a union policy to put economic pressure on the employer in negotiations for renewal of an expired collective-bargaining agreement.

A collective-bargaining agreement between petitioner Lodge 76 (Union) and respondent Kearney & Trecker *134Corp. (employer) was terminated by the employer pursuant to the terms of…