FILE - In this Jan. 8, 2012, file photo, Rep. Gabrielle Giffords, left, leads the Pledge of Allegiance accompanied by her husband, former astronaut Mark Kelly, at the start of a memorial vigil remembering the victims and survivors of the shooting that wounded Giffords, and others, in Tucson, Ariz. Survivors of the Giffords shooting in 2011, say the latest attack brought back painful memories and a reminder that political discourse in America has gotten more and more vitriolic. Giffords said she was heartbroken over the latest attack on Wednesday, June 14, 2017. (AP Photo/Matt York, File)
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