EU referendum 2017: Prime Minister David Cameron to warn over Brexit as he unveils European Union reform wishlist
Prime Minister David Cameron will warn this week over the potential ramifications of Britain leaving the European Union, if his demands for reform are "met with a deaf ear".
In a speech on Tuesday, Cameron will say that if no deal can be reached, he could back a British exit when an in/out referendum is held before the end of 2017.
"If we can't reach such an agreement, and if Britain's concerns were to be met with a deaf ear, which I do not believe will happen, then we will have to think again about whether this European Union is right for us," Cameron will say, according to the media reports.
"As I have said before – I rule nothing out."
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Cameron will add that he's ready to campaign to stay in the EU, but only if the terms are right.
The speech will coincide with a letter to the President of the European Council, Donald Tusk, outlining which parts of Britain's European Union membership he wants to renegotiate.
It will include barring in-work benefits for EU migrants for four years, an exemption from any closer EU integration, and more powers for national governments to block EU legislation.
Opinion polls show that the majority of Britons want to stay in the European Union, however support for the "no" vote has been gathering momentum in recent months.