Amazon, the nation's second-largest private employer, has long sought to keep unions out of its ranks. The strategy succeeded in the U.S. until 2022, when workers at a Staten Island warehouse voted to join the Amazon Labor Union. Last month, workers at a Whole Foods store in Philadelphia voted to join the United Food and Commercial Workers union.
In December, Amazon delivery and warehouse workers at nine facilities went on strike, organized by the Teamsters, during the height of the holiday shopping season to push the company to the bargaining table. The strike ended on Christmas Eve. Amazon said it had no impact on the company's operations.