A special election primary in Arizona’s 7th District Tuesday is the latest flare-up of the Democratic Party’s clashes over age and experience as candidates vie to replace the late Rep.... His daughter, former Pima County Supervisor Adelita Grijalva, is running to fill his seat.... But she faces challenges from five other candidates, two of the most prominent being Deja Foxx, a 25-year-old progressive activist, and former state Rep....