As Ruben Gallego prepares for the biggest ... When officials suggested he take a leave, Gallego joined the United States Marine Corps Reserve before returning to Harvard and graduating in 2004.

Rep. Ruben Gallego, a retired U.S. Marine and longtime U.S. representative in the House, is the front-runner to win Arizona's U.S. Senate seat and become the state's first Latino senator.

The bill would give US Customs and Border Protection more authority. Former Sen. Kyrsten Sinema previously introduced a ...