In a major development that’s set to shake up Capitol Hill, Democrat Adelita Grijalva will win the special election in Arizona’s 7th Congressional District, defeating Republican Daniel Butierez by a wide margin, according to CNN. Her victory doesn’t just fill the seat left vacant by her late father, Rep. Raul Grijalva—it delivers the final, critical vote needed to force a showdown in Congress over the long-suppressed Jeffrey Epstein case files.