Earlier today Rep. Niki Tsongas (D) announced her retirement in 2018 after five and a half terms. Tsongas, Paul’s widow, was mostly a backbencher in the House. The D+10 seat covers most of the blue-collar Merrimack Valley along the NH border and then dips down to limousine liberal exurbs in MetroWest; it should stay in D hands. State Sens. Eileen Donoghue (D), Kathleen O’Connor-Ives (D), Barbara L’Italien (D), Jamie Eldridge (D), and Jennifer Flanagan (D), live in or near the district, along with nearly 20 State Reps. Ex-Fitchburg Mayor Lisa Wong (D) and Lowell Mayor Ed Kennedy (D) may also be names worth watching, along with Boston Mayor Marty Walsh CoS Dan Koh (D), and Ellen Meehan (D), ex-wife of Tsongas’s predecessor Marty Meehan (D).