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.

Arizona Democrats on Tuesday will choose their nominee to run for a vacant U.S. House seat in September, as the party grapples with demands for generational change and divisions over just how progressive it can be in the era of President Donald Trump.

Adelita Grijalva beat back charges of “legacy” and embraced the memory of her father, Raúl Grijalva, to win the Democratic primary for the House seat opened by his death.