With 78 percent of precincts reporting, Kentucky Rep. Anne Northup is narrowly trailing Democratic challenger John Yarmuth in a district long considered a national bellwether. As of 7:50 p.m., Yarmuth, the former publisher of an alternative weekly newspaper in Louisville, had 50.4 percent to Northup's 48.4 percent. As more votes are tallied in the next couple of hours, this bears watching. Long considered a tossup race by Cook Political Report, a skin-of-the-teeth-win by Northup could signal surprising Republican resilience in the nation's swing districts.