The claim is true in substance. In the interview transcript, the questioner says Farage was “quite frank about Ukip in the book” and that he said some of its members were “nutters,” and Farage replies, “Some of them. Not all of them, no.” The same point is also summarized in a later Guardian interview, which says that in *Flying Free* he wrote that early Ukip had a disproportionate number of “nutters” because new parties attract fanatics. (highprofiles.info) Sources: High Profiles interview with Nigel Farage (highprofiles.info); The Guardian, “Farage says Ukip could offer Tories electoral pact in return for referendum” (theguardian.com).