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Nevada Sen. Justin Jones, D-Las Vegs, left, listens as former Rep. Gabrielle Giffords' husband Mark Kelly speaks at a press conference in front of the Legislative Building, in Carson City, Nev., on Friday, May 31, 2013. Kelly said while he and his wife are gun owners, they continue to work to strengthen gun laws including Jones' proposal to require universal background checks on all gun sales in Nevada. (AP Photo/Cathleen Allison)