Over the next few months over 4 million people will have the chance to help shape Britain's progressive future by choosing the next leader of the Labour Party.
This will be the biggest and most widespread election of any political party or any organisation in this country. The contest will be open, engaging and energising. It will be a chance to invite supporters to join the party to have a vote.
This debate will involve Labour Party members, supporters in our affiliated trade unions and the wider public. This leadership contest is Labour's opportunity to take forward the rebuilding for our party for the future challenges ahead.
Over the coming months the candidates will meet thousands of people in meetings across the country and take the debate over Britain's progressive future to as wide an audience as possible.
Andy Burnham, Ed Balls, David Miliband and Ed Miliband and Diane Abbott have all received the necessary minimum of 33 nominations from Labour MPs by the deadline of 12.30pm on 9 June.
Voting will take place through September and the successful candidate will be announced on 25 September before the start of the Labour Party's Annual Conference.