Mike Duffy is a Canadian former politician and journalist, best known for his time as a member of the Senate of Canada. He was appointed to the Senate in 2009, representing the province of Prince Edward Island. Duffy gained significant media attention due to controversies surrounding his expenses and residency claims. In 2015, Duffy faced criminal charges related to his Senate expenses, which led to a highly publicized trial. He was acquitted of all charges in 2016, but the scandal had a lasting impact on his reputation and the public's perception of the Canadian Senate.