New research on the attitudes of party members across the UK points to the challenge before David Cameron if he is to achieve a “yes” vote on the EU referendum without splitting his party badly, writes Professor Tim Bale in The Conversation. The Prime Minister wants to re-negotiate the terms of UK membership of the EU, and then obtain a majority in the referendum for continued membership on those terms but the problem is, what happens if he cannot persuade his members that he has achieved reasonable terms for continued membership?More »