Hillary Clinton's onetime rival for the Democratic nomination for president campaigned on her behalf this weekend.
Sanders headlined a rally at Central High School, 4525 N. Central Avenue, on Sunday.
The rally is billed as a way to encourage efforts to increase voter turnout.
The visit is Sanders' second in Arizona as a surrogate for Clinton. Last month, he visited Flagstaff and Tucson to encourage people to participate in early voting.