But a key ally of the PM admitted: "Despite his defection, Douglas Carswell is still hugely popular with both Tory and UKIP
voters in Clacton.
leader Nigel Farage More than one in 10 (11 per cent) of those who voted Tory in last week's European election could see themselves voting for Ukip
at a general election, compared with 7 per cent for Labour and 3 per cent for the Lib Dems.
Cameron said on the BBC that "politics of the answer rather than the politics of anger" were necessary in Britain and also that UKIP
had a "totally unrealistic, pessimistic version about what this country can achieve".
Dorries' declaration comes days after Ukip
leader Nigel Farage offered an open invitation to any MP from the three main parties who wishes to use the Ukip
banner at the next election.
He said: "I entered politics and joined the Conservative Party to help people - I believe being a member of UKIP
I can now be honest about the issues that matter most to people."
leader Lord Pearson of Rannoch said it is time for a new politics and argues that leaving the EU would save up to Au120 billion a year - with no jobs or trade lost from Britain.
Nationally on results so far Labour's vote showed signs of dipping below 20% - an historic low, and could be beaten by UKIP
Then in the June 2004 elections, UKIP
candidates won 10 additional seats in the EU Parliament to add to the two they already held.
was defending seats won at a high point for the party in 2014, when it took 17% of the vote and 166 councillors as Nigel Farage stepped up pressure for anEU referendum.
chairman Paul Oakden told BBC Two's Daily Politics: "I'm not worried.
Whatever the answer, the UKIP
bandwagon has hit the rails, at least for now.
Seems to me Ukip
will say anything and jump on any bandwagons to get a few extra votes, even if they once poured cold water on some ideas.