Representative Ruben Gallego, a Democrat from Arizona, speaks during a House Armed Services Committee hearing in Washington, D.C., U.S, on Thursday, July 9, 2020.
Democratic Rep. Ruben Gallego of Arizona on Monday launched a 2024 campaign for the U.S. Senate seat held by Sen. Kyrsten Sinema, who recently left the Democratic Party and faces an uncertain political future.
"I will be challenging Kyrsten Sinema for the United States Senate, and I need all of your support," the 43-year-old Gallego said in a video posted Monday morning.
In an interview with the Associated Press, Gallego said Sinema "clearly has forgotten where she came from."
Arizona was one of the battleground states that helped Biden secure his 2020 presidential win over former President Donald Trump.