JoAnna Mendoza, a retired U.S. Marine, who is running for Arizona’s 6th Congressional District, in front of a mural at the Eloy Veteran Center in Eloy, Ariz., on June 16, 2026. Mendoza, a Democrat challenging Representative Juan Ciscomani in a tossup district, is leaning into her painful and unique life story to appeal to voters. (Adriana Zehbrauskas/The New York Times) By ANNIE KARNI JoAnna Mendoza, the Democrat running to represent a southern Arizona congressional district that could…
