Democratic Maine Senate candidate Graham Platner’s national finance director announced his resignation on Friday, marking the latest departure an exodus of personnel from a campaign dogged by controversy at every turn. Ronald Holmes, who started working for Platner’s campaign in August, announced his immediate exit in a LinkedIn post, saying he is “no longer fully aligned” with the campaign’s standards. The exit comes just days after Platner’s campaign manager, Kevin Brown stepped down after less than a week on the job, and two weeks since the campaign’s political director, Genevieve McDonald, left. “I joined this campaign because I believed in...