A US labor board judge ruled that Amazon.com Inc. must collectively bargain with California warehouse workers, teeing up a legal battle that could end with President Donald Trump’s appointees reversing a major union-friendly precedent.
In a Monday ruling, National Labor Relations Board judge Michael Silverstein found that Amazon violated federal law by refusing to recognize the Teamsters union after it obtained majority support from a group of employees at a San Francisco delivery center in 2024. Silverstein’s ruling relied on a Biden-era NLRB precedent, Cemex Construction Materials Pacific LLC.
Under Cemex, if a union signs up a legitimate majority of staff, a company is required to either recognize and bargain with the labor group, or ask the NLRB to hold an election testing its support. Amazon, the judge wrote, did neither.