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.

While Tuesday's special election in Arizona may not seem like the type of story to generate nationwide headlines, the race is getting eyes across the country for boiling down the current state of the Democratic Party into a single election.

The next test of who Democratic voters want to see leading the party will take place Tuesday in southwest Arizona, where three leading candidates are offering competing visions in the primary to fill the late Rep.