Party leaders are due to set out their response to the UK Independence Party's victory in the European elections. Prime Minister David Cameron will travel to Brussels for an informal dinner with other EU leaders where the election results will be discussed. Meanwhile, Labour leader Ed Miliband will set out his approach to rebuilding trust in politics in a speech in Essex. Senior Liberal Democrat Vince Cable said "there is no leadership issue" after calls for Nick Clegg to resign. Following the elections, Mr. Cameron has pushed for changes in the the relationship between Brussels and EU member states in...