MANCHESTER, ENGLAND - SEPTEMBER 24:  Ed Miliband, the Leader of the Labour Party, introduces Bill de Blasio, the Mayor of New York City, before he delivers his speech to delegates on the final day of the Labour Party Conference on September 24, 2014 in Manchester, England. Ed Miliband, the Leader of the Labour Party, delivered his keynote speech to delegates yesterday, and has since admitted missing out a key passage on the UK's financial deficit. The four-day annual Labour Party Conference finishes today in Manchester.  (Photo by Oli Scarff/Getty Images)