Graham Platner, a United States Army veteran and oyster farmer, has won the Maine Democratic primary for the Senate, setting up a high-stakes race against Republican Senator Susan Collins.Platner’s victory on Tuesday came after days of questions over damaging revelations about his past personal conduct, particularly in his relationships with women.Recommended Stories list of 1 itemend of listPlatner, in his acceptance speech, acknowledged voters’ concerns, pledging to earn their “trust, faith and support” over the course of the campaign.Democrats see the race as a top opportunity to flip a Republican-held seat and a must-win as the party tries to claim...