U.S. Democratic presidential candidate Hillary Clinton (C) delivers remarks before being endorsed by survivors and victims of gun violence at a town hall meeting at Central Baptist Church in Columbia, South Carolina February 23, 2016. Joining Clinton on the campaign stop are Lucy McBath, mother of Jordan Davis (from L-R); Maria Hamilton, mother of Dontre Hamilton; Sybrina Fulton, mother of Trayvon Martin; former U.S. Representative Gabby Giffords (D-AZ) and her husband Mark Kelly; Gwen Carr, mother of Eric Garner; and Geneva Reed-Veal, mother of Sandra Bland. REUTERS/Jonathan Ernst