Until the December 2019 general election The Labour Party has won the seat in the constituency in every general election since 1979.The Conservative Party has only been elected once in Workington since World War 2, at the 1976 by-election. Before Brexit, it was in the North West England European Parliamentary Constituency. In June 2012, it became clear that the Solway Plain between Silloth, Abbeytown and Westnewton has been identified as a potential site for a Geological Disposal Facility for the UK's high level nuclear waste. Two other sites have also been identified – Eskdale and Ennerdale – both of these are within the Lake District National Park. The Solway Plain wasn't named by the Managing Radioactive Waste Safely (MRWS) Partnership, rather they referred to the 'Low permeability sedimentary rocks associated with the Mercia Mudstone Group (MMG)'. This was in (publicly available) document 285 of the West Cumbria MRWS in a report written by Dr Dearlove, the consultant geologist recruited by MRWS. In 2013, Cumbria County Council withdrew from the MRWS process. Though Allerdale Borough Council and Copeland Borough Council wished to proceed, the Department of Energy and Climate Change closed the site selection process in west Cumbria.