The pollster Ian Warren has spotted some interesting movement in today’s YouGov poll: the Tories now lead Labour 43-40 among working class C2DE voters. As recently as January Labour had a lead among C2DE voters of 46-35. That’s a huge reversal in five months, and it echoes the trend from the local elections. A reminder for Theresa May what working class voters think of Corbyn’s customs union betrayal?