William J. Brennan, Jr., Breininger v. Sheet Metal Workers… (1989)
“ The union's assumption in the hiring hall of what respondent believes is an "employer's" role in no way renders the duty of fair representation inapplicable. When management administers job rights outside the hiring hall setting, arbitrary or discriminatory acts are apt to provoke a strong reaction through the grievance mechanism. In the union hiring hall, however, there is no balance of power. If respondent is correct that in a hiring hall the union has assumed the mantle of employer, then the individual employee stands alone against a single entity: the joint union/employer. ”
