Prime Minister wants to send hundreds of millions of his toughest negotiators into battle . Tories promise to renegotiate EU membership before in-out vote by 2017 . Foreign Office insiders say renewed relationship with Angela Merkel is key . Deputy PM Nick Clegg warns that leaving EU is 'economic act of self harm '
Prime Minister wants to send one of his toughest negotiators into battle . Tories promise to renegotiate EU membership before in-out vote by 2017 . Foreign Office insiders say renewed relationship with Angela Merkel is key . Deputy PM Nick Clegg warns that leaving EU is 'economic act of self harm '