Graham Platner, the Democratic nominee for US Senate in Maine, officially withdrew his candidacy on Friday afternoon, ending a campaign laden with scandals.Maine’s secretary of state confirmed Platner had filed the paperwork to remove his name from the November ballot, two days after Platner publicly said he planned to exit the race.In a letter shared on social media outlining the populist ideals that underlined his meteoric rise to the national political stage and drew widespread support in the state, Platner called for the movement built under his name to continue. He expressed gratitude to those who supported him, and called...