The Conservatives are planning a ‘ kill Ukip ’ campaign in the Kent constituency where Nigel Farage is standing for Parliament after he vowed to quit as party leader if he loses . Tory HQ is planning a ‘ kill Ukip ’ campaign in the Kent constituency where Nigel Farage is standing for Parliament after he vowed to quit as party leader if he loses . Mr Farage declared yesterday that it would be ‘ curtains ’ for him if he fails to win the Ukip target seat of South Thanet . He conceded it would be impossible for him to continue to dictate Ukip policy without a seat in the House of Commons . Ukip is aiming to win around half a dozen seats , but Mr Farage appears to face a tougher fight than Douglas Carswell , the Tory defector who won a big majority when he stood for Ukip in a by-election . Polls suggest he is in a three-way battle with Labour and the Conservatives . The Tories hold the seat , while Labour previously held it with slightly different borders . Conservative strategists believe Mr Farage has made a significant blunder by tying his fortunes in South Thanet to his future as party leader . ‘ This is a great opportunity , ’ said one . ‘ We can now make this a decapitation campaign . If voters who have previously backed other parties want to stop Ukip , they can vote for us and cut the head off the snake. ’ The strategist said that if Mr Farage stood down after losing the seat , Mr Carswell was likely to take over and ‘ that would be the end of Ukip ’ . Other candidates to succeed the Ukip leader include communities spokesman Suzanne Evans and former journalist Patrick O ’ Flynn , both Euro MPs . Mr Farage appears at odds over several areas of policy with key members of his team , Mr Carswell , who has expressed concern about the ‘ ugly nativism ’ of some Ukip supporters and spoken in favour of immigration . The Clacton MP is also seen as lacking in the broad popular appeal of Mr Farage by Tory campaign chiefs . A Survation poll commissioned by a Ukip donor in South Thanet found Mr Farage to be ahead , but one previous survey had him neck and neck with the Tories and another put the Tories ahead . In an extract from a new book by the Ukip leader , The Purple Revolution , serialised in the Daily Telegraph , Mr Farage made clear he would quit as party leader if he fails to become an MP . ‘ It is frankly just not credible for me to continue to lead the party without a Westminster seat , ’ he wrote . ‘ What credibility would Ukip have in the Commons if others had to enunciate party policy in parliament and the party leader was only allowed in as a guest ? ‘ Was I supposed to brief Ukip policy from the Westminster Arms ? No – if I fail to win South Thanet , it is curtains for me . I will have to step down. ’ Yesterday Ukip won a boost when broadcasting regulator Ofcom awarded it a second party election broadcast on commercial TV and radio on the basis that it is now a ‘ major party ’ . David Cameron 's strategists hope that defeating Mr Farage would 'cut the head off the snake ' of Ukip . The bodys guaranteed Ukip a minimum of two broadcasts in England and Wales on ITV , Channel 4 and Channel 5 , alongside the Conservatives , Labour and Liberal Democrats . But it said the Greens had not demonstrated sufficient electoral support to justify a similar elevation in status . Mr Farage said : ‘ This confirms that Ukip is now a major party in British politics . Voters should now know that despite what all the other parties are going to tell them , the truth is self-evident : if you believe in Britain , and want to vote Ukip , you ’ ll get a Ukip MP . It ’ s great news . ’
he stated that it would be ‘ curtains ’ for him if loses in South elections . Tories pledged to appeal to voters from across the country to help defeat him .