Arizona is the only state that refused to implement a temporary emergency standard related to COVID-19 last June.
Laila Dalton, a shift supervisor who was working to unionize the location at Scottsdale Road and Mayo Boulevard, was fired the day before union election ballots were sent out.
Less than 4% of aircraft pilots and flight engineers are Black or African-American, and only 5.3% are women.
The nationwide wave of support for labor unions has hit 70 Starbucks stores in 21 states, including locations in Mesa and Phoenix.
The site provides a place for Spanish-speaking workers to file unfair practice charges and petitions for union elections in their native language.
The Biden administration last month announced a new effort to protect workers from heat-related illness in the US.
Arizona’s Sinema and Kelly are two of just three Democrat senators who haven’t cosponsored the labor rights legislation.
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