The Home Depot's uniform policy bans political or religious messages "unrelated to workplace matters" from employees' aprons, or elsewhere on their clothing.
Communications Workers of America, the retail workers' union, said big tech companies like Apple fail to give employees who don't work in an office equal standing and respect.
A federal labor official found that Amazon's anti-union tactics may have tainted last spring's voting process sufficiently to scrap its results. Workers had rejected unionization more than 2-to-1.
Amazon avoided the prospect of a first unionized warehouse in America, where it's now the second-largest private employer. The vote in Alabama had prompted new interest in unions across the country.
Hand counting will continue on Friday. So far, more than two-thirds of the tallied votes are against unionizing.
It's a really large mail-in election. (Yes, this one, too.) The tally of yes and no votes has finally begun.
The results will determine whether Amazon gets its first U.S. warehouse union. It's been dubbed one of the most consequential union elections in recent history.
Although the company has unionized workers in Europe, it has held off organizing efforts here. About 6,000 workers at an Amazon facility in Alabama can cast a mail-in ballot starting Feb. 8.
A labor board hearing is hashing out how and when a vote might take place to form potentially the first U.S. union at one of America's largest employers.