David Miliband 'never waiting for his brother to fail'
David Miliband has said he "feared being a distraction" and hopes his decision to leave UK politics helps his brother Ed to lead Labour against the coalition in an "uninhibited way".
The former foreign secretary, pipped to Labour's leadership by his younger brother in 2010, is to step down as an MP and join a US-based charity.
The former Culture Secretary Tessa Jowell is a close friend of David Miliband, she spoke to the BBC about his departure.
27 Mar 2013