LONDON, ENGLAND - MAY 14: UKIP leader Nigel Farage leaves the party's HQ in Mayfair on May 14, 2015 in London, England. Mr Farage is under new pressure after Ukip's campaign director Patrick O'Flynn said that 'Nigel Farage is 'snarling, thin-skinned and aggressive'. Last week Mr Farage submitted his resignation as party leader, following the general election, but remained in his position after the party's refusal to accept it. (Photo by Dan Kitwood/Getty Images)
