Sen. Mark Dion is serving his first term in the Maine Senate, representing Senate District 28, which consists of part of Portland and part of Westbrook.
Sen. Dion is a practicing attorney in Portland, and was sheriff of Cumberland County for 12 years and an officer in the Portland Police Department for 21 years. He has been an advocate on mental health and substance abuse policy, community correction practices and inter-agency partnerships involving public health and safety.
Prior to his election to the Maine Senate, Sen. Dion served three terms in the Maine House of Representatives, from 2010 through 2016. He is a former co-chair of the Committee on Criminal Justice and Public Safety, where he successfully passed legislation to fund eight pilot drug diversion programs at sheriff’s offices around the state, focused on squashing the drug crisis with education, outreach, prevention and treatment. He has also chaired the Committee on Energy, Utilities and Technology.
Sen. Dion is also an appointee to the Maine-Canadian Legislative Advisory Commission, a standing commission of Maine government and business leaders dedicated to maintaining and strengthening strong economic and cultural ties between the people of Maine and Canada. He has also served on the Legislative Redistricting Committee.
In 2013, the Maine chapter of the National Association of Social Workers honored Dion as Legislator of the Year. The award recognized his longtime advocacy on behalf of jail inmates in need of mental health services.
Sen. Dion lives in Portland with his wife, Cheryl. They have two adult daughters.