Christopher Scott Murphy is an American lawyer, author, and politician serving as the junior United States senator from Connecticut since 2013. A member of the Democratic Party, he previously served in the United States House of Representatives, representing Connecticut's 5th congressional district from 2007 to 2013. Before being elected to Congress, Murphy was a member of both chambers of the Connecticut General Assembly, serving two terms each in the Connecticut House of Representatives (1999â2003) and the Connecticut Senate (2003â2007).