BOSTON (AP) – Political newcomer Seth Moulton is setting his sights on Republican Richard Tisei in Massachusetts’ 6th Congressional District, having pulled off the stunning defeat of nine-term incumbent U.S. Rep. John Tierney in a bitter Democratic primary.
Tierney is the first sitting Massachusetts congressman to lose a primary since 1992, when former U.S. Rep. Marty Meehan beat then-incumbent Chester Atkins in the Democratic primary.
Moulton, a former Marine and Iraq war veteran from Salem, will face Tisei in November. He credited Tuesday’s win in part on voter frustration with Congress.
Tierney, in a brief concession speech, said he was proud of “an amazing 18 years” in office. He is the fourth House incumbent and first Democrat to lose a primary this year.
Moulton ran a well-financed campaign, suggesting Tierney had been ineffective.