The U.S. Supreme Court case International Brotherhood of Electrical Workers et al. v. National Labor Relations Board (1950) dealt with the issue of whether a labor union could be held liable for unfair labor practices committed by its members, even if those actions were not explicitly authorized or ratified by the union itself. The court ruled in favor of the National Labor Relations Board (NLRB), asserting that a union can indeed be held responsible for such acts if it has incited, instigated, encouraged, or condoned them through action or inaction. This decision was based on an interpretation of Section 8(b) and Section 2(6) and (7) of the National Labor Relations Act which defines "labor organization" and "to affect commerce". The ruling clarified that unions have a duty to attempt to prevent coercive activities by their members when they are aware such activities are occurring.

In the dissenting opinion for the case of International Brotherhood of Electrical Workers et al. v. National Labor Relations Board, Justice Frankfurter argued that the majority's decision was a departure from established principles governing labor disputes. He contended that it was not within the jurisdiction of courts or administrative agencies to interfere with internal union affairs unless there is clear evidence showing violation of specific statutory prohibitions. According to him, this interference could potentially disrupt delicate balances within unions and undermine their ability to effectively represent their members' interests in collective bargaining processes. Furthermore, he believed that such intervention would infrally upon workers' rights under Section 7 of NLRA which grants them freedom in self-organization and selection representatives for collective bargaining purposes without external influence or control.