Graham Platner's Democratic Senate campaign in Maine imploded after he was accused of rape, forcing the party to scramble for a replacement before a July 13th deadline. National correspondents Lisa Lerer and Shane Goldmacher explain how this crisis has exposed deep ideological divides within the Democratic Party and threatens a crucial Senate seat Democrats need to flip. A sexual assault allegation against Democratic nominee Graham Platner prompted unanimous abandonment by party leadership, including Bernie Sanders, within 24 hours, leaving no major Democratic figures defending him.