https://www.reuters.com/article/us-amazon-com-union-ballots-exclusive/exclusive-roughly-500-ballots-challenged-in-amazons-landmark-union-election-idUSKBN2BW084

Roughly 500 ballots submitted in Amazon.com Inc’s landmark union election have been challenged in a contest that will determine whether an Alabama warehouse becomes the online retailer’s first organized workplace in the United States, people familiar with the matter said.