Ron Barber, an aide to former representative Gabrielle Giffords who was also injured in the shooting that led to her departure from the House, announced Thursday that he will run for her seat to finish the remainder of her term. Barber, 66, has been the district manager for Giffords’s congressional office since 2006, and nearly died after being shot twice during the massacre of Jan. 8, 2011. "I'm not a politician, so I'm taking this one step at a time," Barber said. He said he made the decision after conversations with Giffords and her husband, astronaut Mark Kelly. Three Republicans—2010 Giffords challenger Jesse Kelly, Tucson broadcaster Dave Sitton, and state Sen. Frank Antenori—are running in a special primary election.