COLCHESTER, ENGLAND - APRIL 24:  Nick Clegg, the British Deputy Prime Minister and leader of the Liberal Democrats, holds a question and answer session with members of the public at Colchester United's Weston Homes Community Stadium on the day he launched the Liberal Democrat 2014 European Election Campaign and manifesto on April 24, 2014 in Colchester, England. The Liberal Democrats are regarded as the most pro-European of the UK's major political parties ahead of the European Parliament elections which take place on May 22, 2014.  (Photo by Oli Scarff/Getty Images)