No 10 refuses to deny David Cameron would recommend EU no vote

Asked whether a failure to embrace reform would affect the prime minister's views, (Cameron's) spokeswoman said: "I am not going to speculate on events post the European Council this week. We are focused on this week and we are clear that there is an important principle at stake here and it raises questions about the role of nation states in Europe versus the European parliament."

The spokeswoman's remarks came after the director of the pro-European Centre for European Reform think-tank, Charles Grant, tweeted that Cameron will press for a no vote if EU leaders fail to embrace reform. He tweeted: "10 Downing St is thinking of threatening to recommend a NO vote in referendum to push #EU towards real reform. @CER_London."