Whole Foods workers in Philadelphia voted in favor of union representation Monday, marking the Texas-based and Amazon-owned grocer's very first union. "Despite a tsunami of illegal union busting tactics,

Workers at a flagship Whole Foods Market in Philadelphia, Pennsylvania voted to unionize and become the first union in the grocery chain's history.

Austin-based Whole Foods, which is owned by Amazon, is the latest grocery chain to contend with unionization after workers in Philly voted in favor.