After touring the Isaac Middle School vaccine clinic in Phoenix, she stated that "I'm here today to ask all viewers on these television stations to make the safe choice of getting vaccinated."
Only 40% of Arizonans eligible for vaccination have received it.
Doug Emhoff, husband of Vice President Kamala Harris, was with Biden. Biden acknowledged that they often "disarm and conquer" when visiting clinics separately, but stated that "Today's message is so important, we wanted to be there together."
She stated that Phoenix was the last stop of a month-long tour by the administration to promote vaccinations. However, she said that all efforts to promote immunizations will continue.
Emhoff appealed for the parents to come in and said that he feels better when his daughter and son have been vaccinated.
He said, "I want all parents to feel the same way as I do."
Some protestors gathered outside the school and waved pro-Donald Trump flags.
Cindy McCain, widow of Arizona Republican Senator John McCain, was seated in the front row for the socially distant audience of around 100 people, which included tribal leaders. Recently, President Joe Biden nominated her as the U.S. representative at the U.N. Agencies for Food and Agriculture