The Southern Coalition for Social Justice has filed a lawsuit on behalf of Democracy North Carolina for emergency action to keep Durham polls open until 9 p.m. A hearing on the lawsuit is expected shortly before Wake County Superior Court Judge Don Stephens. The filing comes after software glitches in Durham have prompted the county Board of Elections to ask the state for permission to extend voting hours by 90 minutes Tuesday evening. Durham County Board of Elections Chair Bill Brian said the county took its electronic voting system offline after problems popped up at several precincts. Poll workers were unable to look up voter registration information digitally, so they turned to paper records. That requires the use of paper forms, and when some precincts ran out of the forms, voting ground to a halt.