There is not a crumb of comfort for the Conservatives in the YouGov poll splashed across the front of this morning’s Daily Telegraph. It forecasts that the Tories will lose 196 seats in the coming general election, a bigger slump than the party suffered in 1997, 1945 or 1929. This would represent the second-worst defeat in the party’s history, after Henry Campbell-Bannerman’s Liberal landslide in 1906.