From an article by Tom Slater in Spiked this week

'As political scientist John Curtice has found, only nine per cent of voters now identity as a ‘very strong’ supporter of a political party, while 44 per cent say they are a ‘very strong Remainer’ or a ‘very strong Leaver’. 

'At the last General Election, middle-class Remainers bolted for Labour while many blue-collar Brexiteers bolted for the Conservatives. This was, remarkably, the election in which the Tories took Mansfield and Labour took Kensington.'