Former Rep. Gabrielle Giffords, D-Ariz., testifies on gun violence as her husband Mark Kelly looks on, during a Senate Judiciary Committee hearing in Hart Building entitled 'What Should America Do About Gun Violence?' Giffords was severely wounded during a mass shooting in Tucson, Ariz., in 2011.
Credit: Tom Williams
Former Congresswoman Gabrielle 'Gabby' Giffords receives the 2013 John F. Kennedy Profile In Courage Award at The John F. Kennedy Presidential Library And Museum on May 5, 2013 in Boston, Massachusetts.
Credit: Paul Marotta
Former U.S. Rep. Gabrielle Giffords (D-NV) walks on stage with Democratic National Committee Chair, U.S. Rep. Debbie Wasserman Schultz (D-FL) during the final day of the Democratic National Convention at Time Warner Cable Arena on September 6, 2012 in Charlotte, North Carolina. The DNC, which concludes today, nominated U.S. President Barack Obama as the Democratic presidential candidate.
Credit: Joe Raedle
In this handout image provided by Giffords Campaign - P.K. Weis, U.S. Rep. Gabrielle Giffords (D-AZ) poses for a photo the day after the launch of NASA space shuttle Endeavour and the day before she had her cranioplasty surgery, outside TIRR Memorial Hermann Hospital May 17, 2011 in Houston, Texas. Aides of Rep. Gabrielle Giffords posted two recent photos of the congresswoman to her public Facebook page, the first since the January 8 shooting that killed six people died and a dozen others were wounded.
In this handout image provided by U.S. Rep. Gabrielle Giffords' office on January 11, 2011, Mark Kelly, husband of U.S. Rep. Gabrielle Giffords (D-AZ), holds his wife's hand in the congresswoman's hospital room at University Medical Center January 9, 2011 in Tucson, Arizona. Six people were killed and at least 13 others wounded, including Giffords, when a gunman opened fire at a public event held at Tucson Safeway supermarket.
Mark Kelly leans his head on the shoulder of his wife and former Congresswoman Gabby Giffords as they attend a news conference asking Congress and the Senate to provide stricter gun control in the United States on March 6, 2013 in Tucson, Arizona. Giffords and Kelly were joined by survivors of the Tucson shooting as they spoke outside the Safeway grocery store where the shooting happened two years ago where six people were killed.
Credit: Joshua Lott
Former U.S. Rep. Gabrielle Giffords (L) is excorted down the hall by Rep. Debbie Wasserman Schultz (D-FL) after she resigned from the House of Representatives on Capital Hill on January 25, 2012 in Washington, DC. Giffords resigned from Congress to focus on her recovery from a gunshot wound to the head she received last year from a lone gunman in Arizona.