Democratic presidential candidates Hillary Clinton and Bernie Sanders are in Portsmouth, New Hampshire, today, where Sanders is expected to give Clinton his formal endorsement. This comes as Republican leaders are calling on the Justice Department to open a criminal investigation into whether Hillary Clinton lied in her congressional testimony last fall about the multiple private email servers she used while she was secretary of state. Last week, FBI Director James Comey said the agency was recommending no charges be brought against Hillary Clinton over her email use, although he called her “extremely careless.”