ROCK HILL, S.C. (AP) — Vermont Sen. Bernie Sanders has drawn a sharp contrast between himself and presidential rival Hillary Rodham Clinton. In a televised candidates' forum in South Carolina, Sanders noted his opposition to the war in Iraq and his refusal to accept super PAC donations. Clinton, interviewed separately, said she'll defend Democratic principles. Former Maryland Gov. Martin O'Malley was also interviewed by MSNBC's Rachel Maddow.