Look, we all know it’s going to happen. John Tierney could maybe avoid that because he’s been in office for so long and had the incumbency advantage. But Tierney will not be the Democratic nominee for MA-06:
Seth Moulton, a Harvard University graduate and Marine veteran, became the first Massachusetts Democrat in 22 years to oust a sitting congressman from his own party, edging aside embattled nine-term US Representative John F. Tierney.
The veteran North Shore congressman conceded shortly before 9:30 p.m. Tuesday, as Moulton maintained an 11 percentage point lead with 27 percent of the vote counted.