Alistair Darling To Stand Down As Labour MP Former chancellor Alistair Darling has announced he will step down as Edinburgh South West MP at the 2015 election. In an interview with the Financial Times, the former chancellor said he was "frustrated" the Labour party had not kicked on from the referendum victory. He told the newspaper: "My frustration is that we actually won. You can't say it often enough. We made the arguments, we had confidence in ourselves. Streatham MP Chuka Umunna tweeted: "Very sad to hear Alistair Darling is standing down at the next election. He has made an immense contribution to our country and our party. Video: Alistair Darling's Speech In Full Jim Murphy MP, who is standing as Labour leader in Scotland, tweeted: "History will judge @togetherdarling to have made an immense contribution to Labour, Scotland and the whole UK. Deserves all our thanks. Mr Darling has voiced his support for Mr Murphy in the Scottish Labour leadership race. He told the newspaper: "Jim has the enthusiasm, the energy and above all he's a fighter. For too long we have sat back when we need to fight. Scottish Labour Party leader Johann Lamont resigned last month, claiming her colleagues "do not understand the politics they are facing." Mr Darling became MP for Edinburgh South West in June 1987. He has served as Secretary of State for Transport, Secretary of State for Scotland, Chancellor and Secretary of State for Trade and Industry. He was one of only three cabinet ministers to serve continuously through the years of the last Labour government between 1997 and 2010. He led the Better Together campaign in the Scottish independence referendum, which saw the Yes campaign beaten by 55% of the vote compared to 45%.