437 U.S. 556 (1978) Cited 196 times 13 Legal Analyses
Holding that a newsletter that "urg[ed] employees to write their legislators to oppose incorporation of the state 'right-to-work' statute into a revised state constitution," "criticiz[ed] a Presidential veto of an increase in the federal minimum wage and urg[ed] employees to register to vote" was protected concerted activity
394 U.S. 423 (1969) Cited 117 times 6 Legal Analyses
Upholding union rule, enforceable by fines and expulsion, imposing limitation on immediate pay that members could receive for piecework because Court found no "impairment of statutory labor policy"
Holding that protection from retaliation for "fil[ing] charges or giv[ing] testimony" under the National Labor Relations Act extends to an employee who gave a written sworn statement to an NLRB examiner