FILE - In a  Tuesday, June 12, 2012 file photo, Gabrielle Giffords, D-Ariz., left, and husband Mark Kelly celebrate a Ron Barber victory an election to fill former Rep. Giffords seat, as he addresses supporters at a post election event, in Tucson, Ariz. Giffords and her husband on Tuesday, Jan. 8, 2014 launched a political action committee aimed at curbing gun violence as Tucson residents paused to mark the anniversary of the shooting rampage there. (AP Photo/Ross D. Franklin, File)
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