Jake Auchincloss, a city councilor in suburban Boston and a former Marine, won a packed primary to become the Democratic nominee in the race to fill the U.S. House seat being vacated by Rep. Joe Kennedy III in Massachusetts. Auchincloss edged out six other Democratic candidates in the crowded field for the open 4th Congressional District, a contest that took until early Friday to decide because of a deluge of mailed-in ballots that overwhelmed several cities and towns. After graduating from Harvard in 2010, Auchincloss served as a captain in the U.S. Marines.
