359 U.S. 236 (1959) Cited 2,570 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]"
462 U.S. 393 (1983) Cited 657 times 11 Legal Analyses
Holding that the employer bears the burden of negating causation in a mixed-motive discrimination case, noting "[i]t is fair that [the employer] bear the risk that the influence of legal and illegal motives cannot be separated."
Noting that "an employee . . . can lose protections if his conduct is so egregious as to take it outside the protection of the Act, or of such a character as to render the employee unfit for further service"