Douglas Carswell takes centre stage after Ukip conference bust-up

“We would look at the eurozone… we would look at the whole thing and say no, we are not going to join”.

He said: “I used to think we had a 33 per cent chance of winning, but now I think it is 50 per cent”.

While Farage said Leave.European Union is bringing together the different groups campaigning to get Britain out, the biggest one after UKIP, Business for Britain, conspicuously excluded itself.

Mr Banks confirmed the spat and claimed that Mr Carswell shouted, “You can’t deselect me”, before walking out of the room.

Mr Banks said Mr Carswell’s refusal to back the Leave European Union group put him at odds with the party.

Britain’s UKIP woos other Euroskeptic groups ahead of Brexit referendum.

“We have invited all those groups and organizations who share that aim, and can provide a platform to take that message out across the country.” People feel really strongly about immigration and we’ve got a credible coherent idea. “It Is wholly unacceptable”.

Speaking to delegates, Mr Farage appealed to his members to put “country before party” over the next two years and hailed a “show of unity” among anti-EU groups, who have formed Leave.eu to push for a United Kingdom exit.

He said: “I know how unfair our voting system is”.

Mr Carswell will urge the party to make an “optimistic and upbeat” case for leaving the European Union at the conference later.

Ultimately, the only grouping that matters is who the Electoral Commission designates as the official Leave campaign – which will then be eligible for state funding.

“The very same week I had people contact me to say some travellers had turned up and they didn’t like the fact they were travellers in caravans”. He argued that those Eurosceptics waiting to see what reforms the prime minister wins from Brussels were “pushing for a two-referendum strategy”, accepting defeat in the first before the campaign has commenced.

Banks has dozens of people working in a call centre, which has signed up more than 120,000 supporters.

Meanwhile, Lynton Crosby – the election strategist behind the Tories’ victory in May – has reportedly rejected a £2 million offer to work on the No campaign. Despite not being in Parliament, he is one of Britain’s best-known politicians.

A furious row has erupted at the heart of Ukip after its only MP and a millionaire donor clashed in a corridor at the party’s annual conference.

There was also a controversy over comments by Tim Aker, a Ukip MEP, who said the smoking ban caused more damage to northern communities than the closure of the pits.

In June Ukip was forced to insist that Suzanne Evans had not been sacked as a spokeswoman despite a leaked internal email ordering press officers to keep her off the airwaves when she was caught up in party feuding.

He added: “Douglas may have a slight problem with him, Douglas may have this residual loyalty to his friends in the Conservative Party but frankly given that they haven’t made their minds up that isn’t very relevant”.