The vote, which would have forced the tech giant to negotiate collectively with workers, was the closest an Amazon center in Britain had come to being unionized.
A court-appointed monitor said he was looking into allegations that a union official was punished for resisting actions that would have benefited the union president’s partner and her sister.
An organizer and author, she believed that a union was only as strong as its members and trained thousands “to take over their unions and change them.”