August 10, 2017: U.S. Rep. Niki Tsongas, Massachusetts Democrat, announced yesterday, Wednesday, August 9, 2017, that she does not plan to run for re-election in 2018. Tsongas represents Massachusetts’ Third Congressional District. Tsongas, 71, has held the Third District seat since January, 2013, and she previously represented Massachusetts’ Fifth Congressional District from October, 2007, to January, 2013. Tsongas’ late husband, Paul Tsongas, represented the Fifth Congressional District until he was elected as a U.S. Senator. Paul Tsongas died in 1997.