Mark was first elected to Alyn & Deeside in 2001 with a 52% share of the vote. He was subsequently re-elected in 2005 and then again in the 2010 and 2015 General Elections.
Mark was born on 3rd October 1962 and was educated at Enfield Grammar School and then went on to study history at the University of Wales, Swansea. He lives in the local village, Llanfynydd, with his wife Sally and two children Max and Oscar, who attend the local school.
Prior to working in Westminster Mark was head of policy at the amalgamated Electrical Engineers Union, where he worked closely with union officials in securing additional work for the Broughton Airbus plant. He is also a former member of the TUC General Council.
In Parliament Mark is the Pairing Whip for the Labour Party and is the chair of the All Party Parliamentary Group on Stem Cell Transplantation. He champions enhanced animal rights and takes a keen interest in issues related to industry and has campaigned for crucial investment in Airbus.
Outside of Parliament Mark has a range of interests including football, cricket, antiques, fishing and clay pigeon shooting.