Former Rep. Gabrielle Giffords listens to a speaker as her husband Mark Kelly hugs her March 6, 2013, in Tucson, Ariz., during a return to the site of a shooting that left her critically wounded to urge key senators to support expanded background checks for gun purchases. (Associated Press)

Photo by: Ross D. Franklin

Former Rep. Gabrielle Giffords listens to a speaker as her husband Mark Kelly hugs her March 6, 2013, in Tucson, Ariz., during a return to the site of a shooting that left her critically wounded to urge key senators to support expanded background checks for gun purchases. (Associated Press)