Barry R. Finegold currently serves as a Democratic member of the Massachusetts Senate representing the Second Essex and Middlesex district since 2019. He previously served from January 2011 to January 2015. He is a former state representative of the 17th Essex district in Massachusetts. In January 2014, he announced that he would be a candidate for the Democratic nomination for Treasurer and Receiver-General of the Commonwealth of Massachusetts. On September 9, 2014, Finegold lost in the Democratic primary to Deb Goldberg, who was elected Treasurer in November 2014.

Massachusetts Senate's 2nd Essex and Middlesex district in the United States is one of 40 legislative districts of the Massachusetts Senate. It covers 14.7% of Essex County and 3.9% of Middlesex County population in 2010. Democrat Barry Finegold of Andover has represented the district since 2019.