The UK Independence Party leader again denied claims made in the European Parliament that he had an affair with his spokeswoman Annabelle Fuller.
MEP Nikki Sinclaire, who left the party after a row with Mr Farage, used parliamentary privilege to accuse the Ukip leader of using his secretarial allowance to employ his wife Kirsten and his "former mistress" Ms Fuller. Ms Fuller said she had been "hounded by the press with these false allegations since 2006".
Speaking on BBC One's Sunday Politics show, Mr Farage claimed the Tories were behind attacks on his party. Asked if he denied he employed a former mistress, south east MEP Mr Farage said: "Yes... if you actually look at that allegation and you look at many of the other things that have been said over the course of the last week, I think it's becoming pretty clear to voters that the Establishment are now terrified of Ukip and they will use whatever little helpers they can find to try and do us down in public."
Questioned if it would be a resigning matter for any MEP to employ his wife -having said they would not -and also a former mistress on the European payroll, Mr Farage said: "It would probably be a resigning matter, particularly if the assumption was money was being taken for work that wasn't being done."
Asked if the Conservatives were behind the stories, Mr Farage said: "Yes it is and they're obsessed with the idea... that all our voters are retired half colonels living in Wiltshire. It just isn't the case. We're certainly getting a kicking from Tory supporters and we get some from the Labour side today."
Mr Farage said earlier: "I didn't employ any family member for years. So, in fact, what happened was my wife finished up doing the job completely unpaid for the first seven years of my job."