Carl is one of the few LGBT members of the legislature, after having defeated an anti same-sex marriage incumbent in 2004. He took a leadership role in preserving marriage equality and has passed legislation extending equal rights to transgender residents.
Carl is an active member of the House Progressive Caucus. He has been an advocate for a range of issues related to social and economic justice, including raising the minimum wage, closing corporate tax loopholes, passing Massachusetts landmark universal healthcare law, pushing for improvements in education & testing policies, and increasing access to public transportation.
In his first few terms Carl has passed legislation he filed including the Buffer Zone Law, which protects women entering reproductive healthcare facilities, legislation to foster the creation of senior citizen affordable housing, and the Transgender Equal Rights Law. In addition, he has worked to secure passage of a number co-sponsored bills and amendments.
Carl has received numerous distinctions for his work including being awarded as the "Best of the New" by Boston Globe Magazine and "Legislator of the Year" by the National Association of Social Workers and the Mass Association of School Psychologists. He is a founding member of the Young Elected Officials Network, serving as State Director for two terms. Prior to being elected to the legislature, Carl worked in the public health field as a research manager at Fenway Community Health Center.