HENNIKER, N.H. -- Three days before the New Hampshire primary, Hillary Clinton is trying to roll out a new, forward-looking stump speech -- but she keeps getting dragged back by the issues that have dogged her campaign from day one. At a town hall with students at New England College Saturday afternoon, Clinton was confronted with skeptical questions about two familiar ghosts: her email use at the State Department and her handling of Benghazi.The questions -- one of which was posed by a woman who said she worked for Clinton in the 2008 primary – served as a reminder of the Democratic frontrunner’s inability to put to bed the issues she and her supporters simply dismiss as exaggerated and unfair attacks on her character.