Arizona Attorney General Mark Brnovich claimed the president is illegally favoring unlawful migrants, who are offered a jab but not required to take it

Brnovich is running in a crowded GOP primary to unseat Democratic Sen. Mark Kelly 

Federal workers are required to get vaccinated and businesses with 100 or more employees must require a vaccine or a weekly Covid-19 test under a Biden order

The Arizona attorney general argued that the vaccine mandate violates the Equal Protection Clause of the 14th Amendment to the Constitution