As this year's hard-fought presidential race enters its final days, Hillary Clinton and Donald Trump are campaigning for a path to the 270 electoral votes needed to take the White House. NewsHour Weekend Special Correspondent Jeff Greenfield offers a close…

In 2012, Mitt Romney received zero votes in inner-city Philadelphia. Some Republicans believed such an extreme result indicated fraudulent voting behavior, and this election season, Donald Trump and his supporters have revived that hypothesis. William Brangham speaks with officials in…