The Opinium/Observer survey finds that 56% of people would probably or definitely vote for the UK to go it alone if they were offered the choice in a referendum. About 68% of Conservative voters want to leave the EU, against 24% who want to remain; 44% of Labour voters would probably choose to get out, against 39% who would back staying in, while some 39% of Liberal Democrats would probably or definitely vote to get out, compared with 47% who would prefer to remain in the EU…

Overall just 28% of likely voters think the EU is a “good thing” while 45% think it is a “bad thing”. The 18-34 age group is the only one in which there is a clear majority backing the EU, with 44% saying membership is good, against 25%.