| A law passed by Republicans to disenfranchise college students could inadvertently wreak havoc on the Democratic nomination process. Iowa, with its complex caucus, arcane rules and disastrous election night, is in the rearview mirror. New Hampshire and its simple primary system are next. It should be smooth sailing for the Democrats from here, right? Maybe not. A potential voting roadblock that has flown largely under the radar is sparking mass confusion for campaigns and would-be student voters ahead of the Tuesday primary — with Sen. Bernie Sanders and his younger base facing the biggest threat. | 
