The late Arizona Rep. Raúl Grijalva’s daughter, Adelita Grijalva, won the Democratic primary Tuesday in the special election to succeed him.

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.

Adelita Grijalva is the front-runner to replace her father in Congress but faces an unexpectedly competitive primary featuring a young social-media-savvy newcomer.

Arizona Democrats are set to select their nominee for a U.S. House seat in a district that has been a Democratic stronghold. Front-runner Adelita Grijalva faces competition from youthful contender Deja Foxx,