The overnight YouGov poll giving the Conservatives an 11% lead was the worst for LAB since the 2017 general election. I like to look at polls in context which is why above there there is the full Wikipedia list of all GB voting intention polls this year.
The big picture is that LAB is on the decline and the Tories are moving up a bit. Although you’ve got a range of Conservative leads between 4% and 11% surveys it’s the trend that matters and there can be little doubt that this has been going against the red team in the past few weeks.
When news of the latest YouGov came out I did a quick check back through the polling to find the last time that the Conservatives were in this territory. This of course this led me to the week before the June 8th general election in 2017. That was such a disaster for some pollsters and obviously will give some consolation to Corbyn and his team.
We also now have a new polling series and that is those where the TIGers are listed. The Wikipedia list of those is reproduced below.
I should be noted that different question are asked by each firm and we are getting very different outcomes for the new group.