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 at the Iowa State Fairgrounds in Des Moines, Iowa. As the race between Rep. Ron Barber D- Ariz., who also was wounded in the 2011 shooting, and Republican Martha McSally has grown tighter in the final weeks before the Nov. 4, 2014, elections, Giffords is playing more of a role by appearing in ads and raising money for her former aide and increasingly turning the race into a debate about guns. (AP Photo/Scott Morgan, File)
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