David Cameron's refusal to back the EU's fiscal integration plans have sent his party into the lead in two opinion polls.
The relationship between the prime minister and Nick Clegg faced further difficulty this morning after reports emerged of some bruising jokes at the Liberal Democrat Christmas party.
Liberal Democrats have refused to back the government over a Commons motion praising David Cameron's EU treaty veto.
The number of people not registered to vote has more than doubled in the last ten years, research from the elections watchdog has revealed.
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