A row has erupted after Ukip's only MP and a millionaire donor clashed in a corridor at the party's annual conference leading Nigel Farage to accuse him of having "residual loyalty" to the Conservative Party.
Douglas Carswell accused Arron Banks, a major donor to the party, of acting in an undemocratic manner by saying he would be deselected as MP for Clacton unless he joined the businessman's campaign to leave the European Union.
Mr Carswell told reporters:
Mr Banks called the incident a "hissy fit in a corridor" and refused to back Carswell, saying his refusal to back the Leave EU group put him at odds with the party.
Mr Carswell is currently committed to a separate eurosceptic group, Business for Britain (BfB), a cross-party organisation.
He insists he had briefed Nigel Farage at every opportunity that he was part of BfB and saying it was Ukip party policy to work with whichever campaign receives official designation from the Electoral Commission to fight one side in the referendum, and the money that comes with it.
He also attacked Carswell's favoured eurosceptic group BfB for failing to commit to an "Out" vote until David Cameron completes his renegotiation of the UK's relationship with the EU.
The confrontation lays bare the tensions at the top of the party as the MP and Mr Farage clash over the direction Ukip should take.
Responding to today's confrontation, Mr Farage said: "I don't know what it was all about, if there's a personal conflict between the two, that's life.
"But I don't think Mr Banks should or could purport to represent Ukip in any way at all, he doesn't. He's been a donor to Ukip but he's never held an official position within Ukip."