svg]:overflow-visible">Listen to article • 0:00 minBANGOR, Maine — The Maine Democratic Party formally selected Troy Jackson as its new Senate nominee on Saturday, ending three tumultuous weeks that nearly derailed the party’s quest to unseat veteran Republican Sen. Susan Collins.With just 101 days remaining until the November election, Democrats must now unify a party riven by the spectacular collapse of Graham Platner’s campaign following a sexual assault allegation and refocus attention on the long-indomitable Collins, whose defeat is key to long-shot Democratic hopes of retaking control of the U.S. Senate.Accepting the nomination from a convention center in downtown Bangor with a...