Foxx has also been endorsed by the progressive advocacy group Gen-Z for Change. The organization’s Executive Director Cheyenne Hunt, who ran in a primary for a House seat in California last year, emphasized that the Arizona race was a key opportunity to uplift young leaders in the party.

The Democratic primary to fill the seat vacated by the death of Representative Raúl M. Grijalva in Arizona’s deep blue Seventh Congressional District in Tucson will be a contest between legacy and change.

For more than two decades, much of Southern Arizona was represented by Rep. Raúl M. Grijalva, a liberal stalwart who championed environmental causes, supported immigrant rights and advocated on behalf of indigenous communities.