Sept. 23 (UPI) -- 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.

Arizona's 7th District was vacated by Rep. Raúl Grijalva, D-Ariz., who died of cancer in March. His daughter, Adelita Grijalva, is trying to win his seat in a district where President Donald Trump lost by 22 points.

Adelita Grijalva is heavily favored against Republican Daniel Butierez, who ran for the seat against her father last year and lost by 26 points.

If she wins, she has said she will sign the discharge petition to force a vote on the House floor to release the files related to Epstein. The petition, led by Rep. Thomas Massie, R-Ky., Rep. Ro Khanna, D-Calif., needs just one more signature.

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