Workers at a Whole Foods Market in Pennsylvania have voted to unionize, becoming the first group of employees to pull off a labor win at the Amazon-owned grocery store chain.

Now, a battle lies ahead when working out the first contract between Whole Foods and the unionized workers. "This is going to be the longest uphill battle of our lives, but this is not just for us. This is for the people who come behind us and for the people who have been here," said Khy Adams, a Whole Foods employee.

Whole Foods workers in a Pennsylvania store vote to form the first union under Amazon ownership, joining a local chapter of the UFCW.

The Amazon-owned grocery store brand says it's 'disappointed' in the employees' plan to join the United Food and Commercial Workers union.

Workers voted for a union—the first at the Amazon-owned grocery store. But actually negotiating a contract will be a long battle, especially now that Trump has gutted the National Labor Relations Board.

Workers at Whole Foods in Philadelphia voted to unionize, citing concerns over wages, staffing, and health benefits. The vote marks the first union win at the Amazon-owned grocer in decades. Whole Foods opposed the effort and stated its starting wages exceed the city’s retail average.