359 U.S. 236 (1959) Cited 2,558 times 33 Legal Analyses
Holding that "the States as well as the federal court must defer to the exclusive competence of the National Labor Relations Board" if "an activity is arguably subject to § 7 or § 8 of the [NLRA]"
341 U.S. 675 (1951) Cited 494 times 1 Legal Analyses
Affirming Board's assertion of jurisdiction over activities taking place at local construction site based on finding that "any widespread application of the practices charged might well result in substantially decreasing" the flow of interstate commerce
Finding a violation of the Act when a supervisor mistakenly believed an employee was involved with the union and discharged him "because of his alleged union activities"
259 U.S. 344 (1922) Cited 411 times 1 Legal Analyses
Holding that labor union could be sued for antitrust violations and describing the "affirmative legal recognition of their existence and usefulness and provisions for their protection"
Stating that section 8(b) prohibits labor unions from engaging in "secondary boycotting" by "exert[ing] pressure on an employer not involved in the relevant labor dispute ('the secondary employer') in order to obtain a favorable result in the ongoing labor dispute with another employer ('the primary employer')"
29 U.S.C. § 151 Cited 5,091 times 34 Legal Analyses
Finding that "protection by law of the right of employees to organize and bargain collectively safeguards commerce" and declaring a policy of "encouraging the practice and procedure of collective bargaining"