FILE - This Oct. 27, 2013 file photo shows former U.S. Rep. Gabby Giffords (D-Ariz.), at a fundraiser for U.S. Senate candidate Bruce Braley during the Bruce Blues & BBQ at the Iowa State Fairgrounds in Des Moines, Iowa. Giffords is working on a book about gun control. The Arizona Democrat and her husband, the retired Navy captain and astronaut Mark Kelly, are collaborating on "Enough: Our Fight to Keep America Safe from Gun Violence." Scribner, an imprint of Simon & Schuster, announced that "Enough" was scheduled for release in June. (AP Photo/Scott Morgan, File)
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