Here is Ed Miliband's statement setting out the amazing contribution his brother David has made to British politics. And here is a pic of the three of us with some of our teachers from Haverstock School that we all attended in the 1980s. Time flies..."David is taking an important job running the IRC, a global organisation with stature and reach. I am delighted for him that he has been given this opportunity.
Having spoken to him a lot over the past few months, I know how long and hard he thought about this before deciding to take up the offer. I also know how enthusiastic he is about the potential this job provides.
David has made a huge contribution to our country and the Labour Party over two decades. As head of the Downing Street policy unit, as MP for South Shields, as Environment Secretary where he pioneered the Climate Change Act, and as Foreign Secretary where he won respect and admiration around the world.
As for us, we went through a difficult leadership contest but time has helped to heal that. I will miss him. But although he is moving to America, I know he will always be there to offer support and advice when I need it. British politics will be a poorer place without David. But his huge talents will be serving people around the world.
I hope and believe that at some point in the future he can once again make a contribution to British public life." Ed Miliband
David Miliband resigns: Ed's statement