Britain should cease to be a full member of the European Union under a new deal that would focus on trade, according to senior Brussels politicians. An umbrella group of 20 organizations campaigning for a federal Europe suggested Britain should be offered “associate membership” of the EU to prevent the country leaving altogether.David Cameron is seen as the “continual impediment” to a closer integration of eurozone states, according to the Union of European Federalists. The plan would see the UK lose all its MEPs, its commissioner in Brussels and its right to veto decisions in the European Council, but remain...