Labor advocates say that the company is becoming desperate as baristas continue to successfully organize their stores.
Sanders condemned legislation that, if approved, could provide the billionaire’s company with a lucrative NASA contract.
Two of the three flagship roasteries in the U.S. are now unionized.
Sanders is going to New York and Virginia to meet with the workers waging historic union campaigns.
About 70 percent of the workers at the Atlanta store signed union cards for their petition.
The move comes after revelations that Amazon hired a prominent Democratic polling firm for its union-busting campaign.
Though Starbucks claims to be progressive, most of its workers make less than a living wage in most states.
Support is especially strong among young Democrats, who were 91 percent in favor of the Amazon union.
Fifty-nine percent of likely voters support the proposal to levy a minimum tax on the ultrarich.
Median total CEO compensation increased 31 percent from 2020, as executive bonuses and stock awards rose.