An Arizona special election primary Tuesday to replace the late Rep. Raúl Grijalva is the latest flare-up of the Democratic Party’s clashes over age and experience.

Pima County Supervisor Adelita Grijalva secured the Democratic nomination on Tuesday for the special election in Arizona for her late father’s seat, giving her a clear path to victory in the deep blue district.

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.