A Starbucks barista strike is expanding to some 5,000 workers at what organizers said was more than 300 stores in 45 states, just as the company's busy holiday stretch begins.

A rolling strike of Starbucks baristas has grown since kicking off Friday to include about 300 of the coffee giant’s shops across the U.S., according to the union organizing the work stoppage. The strike, set to end after Christmas Eve, seeks to pressure ...

Starbucks workers have expanded their strike to more cities and closed 59 stores across the U.S. as of Monday, the union said amid stalled negotiations.