High Quality Content by WIKIPEDIA articles! Matthew A. "Matt" Cartwright (born May 1, 1961) is an American attorney with the law firm of Munley, Munley, and Cartwright. He is the Democratic U.S Representative-elect for Pennsylvania`s 17th congressional district and will be sworn in on January 3, 2013. Cartwright defeated 10-term incumbent Blue Dog Congressman Tim Holden, the dean of the Pennsylvania Congressional delegation, in the Democratic primary on April 24, 2012, by a 57%-43% margin. Cartwright went on to defeat Republican Laureen Cummings in the general election on November 6, 2012 by a 61%-39% margin.