Hugo Black,
Vaca v. Sipes — Dissent
“ Henceforth, in almost every § 301 breach-of-contract suit by an employee against an employer, the employee will have the additional burden of proving that the union acted arbitrarily or in bad faith. The Court never explains what is meant by this vague phrase or how trial judges are intelligently to translate it to a jury. Must the employee prove that the union in fact acted arbitrarily, or will it be sufficient to show that the employee's grievance was so meritorious that a reasonable union would not have refused to carry it to arbitration? ”
