They came to hear his call for economic justice and equality, for his criticism of the billionaire class, happy to finally have a candidate that speaks to working class interests.
Netroots Nation, the gathering of progressive activists and bloggers, is heading into its 10th year in Phoenix this week.
Arizona, a traditionally deep red state, has not seen the last of Bernie Sanders.
"Mother Demands Justice" was the theme of a press conference and protest at the unveiling of a large public mural in downtown Tucson commemorating the murder of a Mexican teen.
The ruling comes following a three-week trial in July and August over a pattern of unlawful practices by Arpaio and the Maricopa County Sheriff's Office on immigration sweeps and traffic stops.
After the abduction of her mother by ICE Jan. 10, Erika Andiola got in touch with other immigrants' rights activists, and within hours a nationwide network was mobilized.
Unlike other Americans, Arizonans were not able to wake up the next morning to news of the state's election results.
The first-ever U.S. senator of Puerto Rican descent - elected not from New York, Massachusetts, or Illinois, but from Arizona.
President Obama recently ordered an end to deportation of young people who have been brought to this country as children.
The U.S. Supreme Court struck down three parts of Arizona's immigration law today, but permitted one of the key parts to stand in a split decision.