LONDON, ENGLAND - APRIL 02:  Zac Goldsmith, Conservative parliamentary candidate for Richmond Park and North Kingston speaks on transforming politics in the UK at the RSA (Royal Society of Arts) on April 2, 2015 in London, England. Tonight will see a televised leaders election debate with seven political parties, including Prime Minister David Cameron, Leader of the Liberal Democrats Nick Clegg, Labour party leader Ed Miliband, UKIP's Nigel Farage and the leaders of the Green Party, Plaid Cymru and SNP leader Nicola Sturgeon. The debate will be the only time that David Cameron and Ed Miliband will face each other before polling day on May 7th.  (Photo by Dan Kitwood/Getty Images)