Ukip leader Diane James has quit the role after just 18 days. Ms James said on Tuesday night that she does not "have sufficient authority, nor the full support" of Ukip MEPs and officers to reform the party.

Her sudden departure has led to speculation of a potential return by Nigel Farage, although he has ruled himself out again this morning. Mr Farage remains acting leader of the party but he told Sky News that it is a "rotten job" and he has no plans to stand for re-election, although he will remain as acting leader.

But Ukip chairman Paul Oakden said the former leader was "ready to serve in any way he can", adding: "I would say anything is possible at the moment."

In a statement Ms James said: "It is with great regret that I announce that I will not be formalising my recent nomination to become the new leader of the party with the Electoral Commission.

"Having won the enthusiastic support of party members, I was nominated by them as the new leader at the recent Ukip Bournemouth conference.