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*]<ref name="notstand" /> – nominated ]<ref>{{cite web|url=http://www2.labour.org.uk/leadership-Diane-Abbott|title=2010 Labour leadership election-Diane Abbott|publisher=Labour Party|accessdate=24 June 2010}}</ref> and supported ],<ref>{{cite news|url=http://www.independent.co.uk/news/uk/politics/straw-backs-miliband-in-leadership-race-2050307.html|title=Straw backs Miliband in leadership race|date=12 August 2010|accessdate=12 August 2010|work=]|first=Lewis|last=Smith | location=London}}</ref> former Justice Secretary and Lord Chancellor, previously Foreign and Home Secretary
*]<ref name="notstand" /> – nominated ]<ref>{{cite web|url=http://www2.labour.org.uk/leadership-Diane-Abbott|title=2010 Labour leadership election-Diane Abbott|publisher=Labour Party|accessdate=24 June 2010}}</ref> and supported ],<ref>{{cite news|url=http://www.independent.co.uk/news/uk/politics/straw-backs-miliband-in-leadership-race-2050307.html|title=Straw backs Miliband in leadership race|date=12 August 2010|accessdate=12 August 2010|work=]|first=Lewis|last=Smith | location=London}}</ref> former Justice Secretary and Lord Chancellor, previously Foreign and Home Secretary
In the months before the 2010 general election, some other notable politicians were mentioned as possible future leadership candidates, but were not sitting MPs at the time the contest took place, and therefore not eligible to stand under Labour Party rules. Those mentioned as possible leaders in this regard were ],<ref>http://www.newstatesman.com/blogs/the-staggers/2012/02/gordon-brown-lost-leader-done</ref> ],<ref>http://www.telegraph.co.uk/news/politics/labour/2506278/David-Miliband-lines-up-Alan-Milburn-as-Chancellor-as-leadership-plot-gathers-pace.html</ref> ],<ref>{{cite news|url=http://www.telegraph.co.uk/news/newstopics/politics/6022332/Peter-Mandelson-officially-rules-out-ever-being-Labour-leader.html|title=Peter Mandelson 'officially' rules out ever being Labour leader|date=13 August 2009|accessdate=3 July 2010|work=] | location=London}}</ref> and ].<ref>{{cite news|url=http://www.telegraph.co.uk/news/newstopics/politics/labour/5903183/Ed-Balls-attacks-Labour-leadership-rival-James-Purnell.html|title=Ed Balls attacks Labour leadership rival James Purnell|date=24 July 2009|accessdate=4 July 2010|work=] |first1=Andrew | last1=Porter | first2=Mary | last2=Riddell | location=London}}</ref>
In the months before the 2010 general election, some other notable politicians were mentioned as possible future leadership candidates, but were not sitting MPs at the time the contest took place, and therefore not eligible to stand under Labour Party rules. Those mentioned as possible leaders in this regard were ]<ref>http://www.telegraph.co.uk/news/politics/labour/3085914/Ruth-Kelly-David-Miliband-is-a-star-and-challenge-to-Gordon-Brown-is-possible.html</ref>, ],<ref>http://www.newstatesman.com/blogs/the-staggers/2012/02/gordon-brown-lost-leader-done</ref> ],<ref>http://www.telegraph.co.uk/news/politics/labour/2506278/David-Miliband-lines-up-Alan-Milburn-as-Chancellor-as-leadership-plot-gathers-pace.html</ref> ],<ref>{{cite news|url=http://www.telegraph.co.uk/news/newstopics/politics/6022332/Peter-Mandelson-officially-rules-out-ever-being-Labour-leader.html|title=Peter Mandelson 'officially' rules out ever being Labour leader|date=13 August 2009|accessdate=3 July 2010|work=] | location=London}}</ref> and ].<ref>{{cite news|url=http://www.telegraph.co.uk/news/newstopics/politics/labour/5903183/Ed-Balls-attacks-Labour-leadership-rival-James-Purnell.html|title=Ed Balls attacks Labour leadership rival James Purnell|date=24 July 2009|accessdate=4 July 2010|work=] |first1=Andrew | last1=Porter | first2=Mary | last2=Riddell | location=London}}</ref>
The rules of the Labour Party state that "each nomination must be supported by 12.5 per cent of the Commons members of the Parliamentary Labour Party." As the number of Labour MPs is 257 (the 258 returned at the general election minus Eric Illsley, who was suspended from the Parliamentary Labour Party) 33 MPs need to support any nomination. Nominations opened on 24 May and were to close on 27 May, but the deadline was extended to 9 June after complaints from John McDonnell, Diane Abbott and Ed Miliband that the short deadline provided insufficient time to secure the 33 nominations from MPs needed for inclusion on the ballot. The ballot took place between 1 and 22 September, with the results announced on the first day of the party's conference in Manchester on 25 September. There were three distinct electorates, the electors of which cast their votes on a "one member, one vote" basis in each applicable category:
Individual members of affiliated organisations, such as trade unions and socialist societies
Each of the three electorates or sections contributed one third (33.33 per cent) of the total votes and were counted using the Alternative Vote system. The election was run by the National Executive Committee and the results were announced at the annual conference in September 2010.
Union recommendation controversy
Under Labour Party rules, trade unions are allowed to make recommendations to their members, but are barred from doing this in the same communication that contains the ballot paper. During the election, it emerged that both the GMB and Unite had included both an envelope containing the ballot paper, and promotional material for Ed Miliband, their favoured candidate, in the same envelope, attracting criticism that they had breached the spirit of the rules.
Candidates
At a meeting of the Cabinet held on 10 May 2010, it was agreed that no one would announce their candidacy until after formal negotiations in regards to forming a government were resolved. The Conservative Party and Liberal Democrats formed a coalition on 11 May, and David Miliband became the first person to announce his candidacy the following day. A total of six candidates emerged by 20 May:
On 9 June John McDonnell withdrew from the contest in favour of Diane Abbott, who eventually made the ballot paper.
Nominations
Candidates must receive nominations from at least 12.5 per cent of the 257 Parliamentary Labour Party members (33) to appear on the ballot. John McDonnell had 16 nominations when he withdrew on 9 June, in favour of Diane Abbott. The final nominations figures were as follows:
Alan Johnson – supported David Miliband, former Home Secretary, previously Health Secretary and Education Secretary
Jack Straw – nominated Diane Abbott and supported David Miliband, former Justice Secretary and Lord Chancellor, previously Foreign and Home Secretary
In the months before the 2010 general election, some other notable politicians were mentioned as possible future leadership candidates, but were not sitting MPs at the time the contest took place, and therefore not eligible to stand under Labour Party rules. Those mentioned as possible leaders in this regard were Ruth Kelly, Charles Clarke, Alan Milburn, Peter Mandelson, and James Purnell.
In accordance with the principles of the Alternative Vote system, until one candidate won a majority, the candidate with the fewest votes in each round was eliminated and his or her second preference votes distributed to other candidates.
The total of first-round votes for Balls, Burnham, and Abbott (27.89%) was less than Ed Miliband's vote (34.33%). Thus, it was certain after the first round that Balls, Burnham, and Abbott would all be eliminated; if the Party rules permitted, they could have been eliminated together, reducing the contest to two rounds.
The below map shows the results of the leadership election by constituency. David Miliband took the most constituencies, winning 577 in total. He was followed by Ed Miliband who took sixty-seven constituencies. Andy Burnham won eight seats, all in the north-west, Ed Balls took two constituencies (his own, Morley & Outwood, and that of his wife, Yvette Cooper, Normanton, Pontefract and Castleford), and Diane Abbot won no constituencies. All ties with the exception of Wigan (Andy Burnham and David Miliband) were between David and Ed Miliband. Northern Ireland was counted as one constituency.