Rubén Marinelarena Gallego ( ROO-bən gy-EH-goh; born November 20, 1979) is an American politician and former U.S. Marine serving as the U.S. representative for Arizona's 3rd congressional district. A Democrat, he previously served as a member of the Arizona House of Representatives, where he was assistant minority leader from 2012 until he resigned to run for Congress. Gallego was first elected to Congress in 2014. His district includes most of southern, western, and downtown Phoenix, and part of Glendale. He served as the national chair of Eric Swalwell's 2020 presidential campaign. Gallego served and deployed as a USMCR Corporal during Operation Iraqi Freedom. Gallego is a candidate for the United States Senate seat currently held by Democrat-turned-independent Kyrsten Sinema in 2024.