David Cameron's official spokesman has said that the position on a referendum which the Prime Minister set out over the weekend did not represent a shift from his comments at the European Council last Friday, when he appeared to be ruling out a poll.
The spokesman told a daily media briefing in Westminster.
I don't think his view has changed.
What he said on Friday was that he didn't think an in/out referendum was the right question.
He has set out the position very clearly in his article yesterday.
When it comes to the EU, there is ongoing uncertainty and that is at the heart of the argument he makes.
It would seem that the EU is going to change, but precisely how it changes we don't know at the present time and I don't think the other 26 members of the EU are able to say with any certainty how it will change.
Former defence secretary Liam Fox has said that the UK should leave the European Union unless there is a rebalancing of their relationship.
Foreign Secretary Hague said there would be a "very, very powerful" case for a referendum if Europe moved towards a more federal system.