Holding that union could not expel member because he filed unfair labor practice charge against it without first exhausting internal remedies as provided in union constitution
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"