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.

A special election primary in Arizona’s 7th District on Tuesday was the latest flare-up of the Democratic Party’s clashes over age and experience as candidates vie to replace the late Rep. Raúl Grijalva.

Establishment-backed Democrat Adelita Grijalva was set to win a primary to fill the U.S. House of Representatives seat in Arizona vacated by her late father, according to several media projections late on Tuesday.