article_snippet: The Tories are going into the election campaign as the only party promising to renegotiate EU membership before holding an in-out referendum by the end of 2017.
article_snippet: Foreign Office includes curbing access to benefits for migrants, ending child benefit being exported to families overseas and tighter controls on families coming to Britain.
article_snippet: However, securing agreement on a referendum after the election could prove difficult.
article_snippet: Lib Dems leader Nick Clegg accused the Tories of dancing a 'hokey cokey where one day the Tories want to leave, the next day the Tories don't want to leave'.
article_snippet: We are not like the Conservative Party, half of whom are straining at the leash to leave.
article_snippet: We think that would be a terrible thing for the British economy.'
article_snippet: Foreign Secretary Philip Hammond added: 'Of course the British economy would be an economic act of self harm to leave the European Union. '
article_snippet: Large parts of the Conservative Party and Ukip appear to want Britain to cut Britain off from what is the world's largest marketplace with hundreds of millions of customers for British goods and services. '
article_snippet: For me it's stating the flaming obvious that we need to secure Britain's presence at the heart of the European Union in the same way it's flaming obvious that we should secure the British economic recovery by finishing the job of balancing the books but doing it in a fair and sensible way - not taking an ideological approach to cuts, which is the Conservative approach, nor taking such an irresponsible approach to borrowing, which is Labour's approach.'
highlights_snippet: The Tories promise to renegotiate EU membership before in-out vote by 2017 .
  
highlights_snippet: Deputy PM Nick Clegg warns that leaving EU is 'economic act of self harm' 