Workers across the U.S. allege that the giant company is conducting a harsh crackdown on unionization activities, and they have responded with protests and strikes.
The loss is a setback for the Amazon Labor Union, which has struggled to expand its influence beyond New York City and even hang on to its gains there.
U.K. unions are ready to take on the government if it attempts to strip away workers' rights, the head of the Trades Union Congress — the umbrella movement for the U.K.'s major unions — has said.