Ken Donnelly

Kenneth J. Donnelly is the Massachusetts state senator for the Fourth Middlesex district, which includes his hometown of Arlington and several other cities. He is a Democrat who has served since 2009. Donnelly graduated from the University of Massachusetts Amherst with a BA in Labor Studies. He is a retired lieutenant with the Lexington Fire Department in Lexington, Massachusetts.

On June 17, 2014, Donnelly endorsed fellow Democrat Don Berwick in the Massachusetts gubernatorial election, 2014.