Boris Johnson believes that leaving the European Union could be a shot in the arm for British democracy. The London Mayor declared that the country should be prepared to walk away, if a renegotiation on our terms of membership fails to get results.
Political Correspondent Simon Harris reports.
David Cameron is cutting short his visit to Europe to return to Britain after the death of Margaret Thatcher.
London Mayor Boris Johnson has thrown his support behind David Cameron's speech this morning on the European Union. The Prime Minister promised an in/out referendum on the UK's membership of the EU by the end of 2017 if the Conservatives win the next general election.
Boris Johnson has called for a referendum on whether the UK should stay in the European Union, saying he wanted to be friendly with Europe but free to trade with the rest of the world.
In a speech to news agency Reuters, the Mayor called the Euro "a calamitous project" and said he believed the government needed a change of tactics in order to give London and the rest of the UK the best chance to thrive in the global economy.