https://www.reuters.com/article/us-usa-amazon-com-nlrb/unions-evidence-in-amazon-vote-could-be-grounds-for-overturning-election-u-s-labor-board-says-idUSKBN2CF2OZ

WASHINGTON (Reuters) -Evidence submitted by a retail union that raised objections to Amazon.com Inc's conduct at this month's union election in Alabama "could be grounds for overturning the vote", the National Labor Relations Board said on Wednesday.