Cindy Friedman is a Democratic member of the Massachusetts State Senate, representing the Fourth Middlesex District, which includes Arlington, Billerica, Burlington, parts of Lexington, and Woburn, since July 2017. Before her election, she worked as a public school teacher and as a senior manager in the high-tech industry, and later spent nearly a decade as chief of staff to state senator Ken Donnelly. She has served as Senate Chair of the Joint Committee on Mental Health, Substance Use and Recovery, and later as Senate Chair of the Joint Committee on Health Care Financing and vice chair of the Senate Committee on Ways and Means.