NBC News projects victory for the progressive former Pima County supervisor in a deep-blue district stretching along the U.S.-Mexico border.

The victory of Adelita Grijalva to replace her late father will bring the House makeup to 219-214, and will likely secure the signatures required to vote on releasing the Epstein files.

Adelita Grijalva, a county supervisor, claimed victory late Tuesday in the special election to fill Arizona's 7th Congressional District, further shrinking the Republicans' majority of the House of Representatives.

A special congressional election in Arizona Tuesday could add a final needed signature that would force a vote on the release of the Jeffrey Epstein files.

Grijalva won the election for Arizona’s 7th Congressional District defeating Republican candidate Daniel Butierez.

Adelita Grijalva’s victory in a special election for a House seat in Arizona appears to give backers of a so-called discharge petition enough signatures to compel action.

() - Honest Elections Project, a nonpartisan organization, has filed an amicus brief in support of Republicans' lawsuit against Arizona over its handling of changes to its Election

Former Pima County, Ariz., supervisor Adelita Grijalva (D) has won the special election to fill the House seat held by her late father, former Rep. Raúl Grijalva (D-Ariz.), according to a

Democrat Adelita Grijalva won the Sept. 23 Arizona special election to fill the U.S. House seat left vacant by her father, Raúl Grijalva.