Hillary Clinton's opponents piled on with attacks after her announcement

Hillary Clinton's likely opponents began piling on immediately after she announced the launch of her 2016 presidential campaign on Sunday afternoon.  Several of Clinton's top rivals quickly fired off statements responding to her official entry into the race.  Sen. Rand Paul (R-Kentucky), who launched his White House bid last week, unveiled an ad Sunday morning that focused on Clinton. The commercial begins with footage showing headlines about the controversies over Clinton's family foundation,...