I’ve only had a couple of hours sleep so this is a very short comment on lessons from the polls at the election. The two best performing traditional polls seem to be those from Survation and Surveymonkey. Survation had a one point Con lead in their final GB poll, Surveymonkey had a four point lead in their final UK poll. The actual lead is 2 or 3 points depending on if you look at UK or GB figures. Congratulations to both of them. While it wasn’t a traditional poll, YouGov’s MRP model also came very close – it’s final GB figures were a four point lead (and some of the individual seat estimates that looked frankly outlandish, like Canterbury leaning Labour and Kensington being a tossup, actually turned out to be correct).

Looking across the board the other companies all overstated the Tory lead to one degree or another. The actual share of the Tory vote was broadly accurate, rather it was that almost everyone understated Labour support. I have a lot of sympathy with Peter Kellner’s article in the Standard earlier – that to some degree it was a case of pollsters “trying too hard”. Companies have all been trying to correct the problems of 2015, and in many cases those changes seem to have gone too far.

A big gulf between pollsters that many commented on during the campaign was the attitude to turnout. The pollsters who were furthest out on the lead, ComRes, ICM and BMG, all used methods that pumped up the Tory lead through demographic based turnout models, rather than basing turnout on how likely respondents said they are to vote. This was in many ways a way of addressing an issue in 2015 polling samples that contained too many of the sort of young people who vote, weighting down young turnout (and turnout among working class respondents, renters, or less well educated – different pollsters used different criteria). This wasn’t necessarily the wrong solution, but it was a risky one – it depends on modelling turnout correctly. What if turnout among young people actually did rise, then pollsters who were replicating 2015 patterns of turnout might miss it. That may be what happened.

That said, one shouldn’t jump to conclusions too quickly. It may be a case of how demographic turnout models were applied (by weighting the whole sample to match 2015 recalled vote and then separately weighting different demographic groups up or down based on likelihood to vote there’s a risk of “double-counting”). Most importantly, the YouGov MRP model and the Surveymonkey survey both based their turnout models on demographics too, and they both got the election right, so clearly it’s an approach that has the potential to work if done correctly.

Personally I’m pleased the YouGov model worked, disappointed the more traditional YouGov poll had too big a lead… but that at least gives us something to learn from (and for most of the campaign the two showed a similar lead, so rolling back some decisions and learning from the model seems a good starting point).

And with that, I’m going to get some sleep.

As usual, the final poll of the campaign (unless ICM do release updated figures) is from Ipsos MORI, who traditionally keep on polling on Wednesday evening and publish their final call in Thursday’s Evening Standard. Topline figures are CON 44%(-1), LAB 36%(-4), LDEM 7%(nc), UKIP 4%(+2), giving them an eight point Tory lead. Two slight changes since the last poll – MORI have expanded their turnout adjustment to include tenure and, in the same way as they have done in their final call at past general elections, they’ve reallocated people who are certain to vote but are still saying don’t know in line with their newspaper readership. Full tabs are here.

And, that’s it until 10pm, when we will get the headline call from the BBC/ITN/Sky exit poll from MORI and GfK.


So, here goes – the eve of the election means we get the final call polls. We already got Opinium’s final poll yesterday and Ipsos MORI won’t be till tomorrow, but everyone else should be reporting today.

ICM have tended to show the strongest leads for the Conservatives during the campaign – their final poll for the Guardian continues that trend with topline figures of CON 46%(+1), LAB 34%(nc), LDEM 7%(-1), UKIP 5%(nc), a Tory lead of twelve points. Fieldwork was yesterday and today. Note that these are preliminary figures and that ICM are continuing to collect data through the evening, so they will confirm final results later. The tables for the preliminary results are here.

ComRes for the Independent have final figures of CON 44%(-3), LAB 34%(-1), LDEM 9%(+1), UKIP 5%(+1). Fieldwork was between Monday and today. Along with ICM ComRes tend to show the largest leads for the Conservatives, and the ten point lead is actually their lowest of the campaign. Tables are here.

Surveymonkey for the Sun report just a four point lead for the Conservatives: CON 42%(-2), LAB 38%(nc), LDEM 6%(nc), UKIP 4%(nc). Fieldwork was Sunday to Tuesday and changes are from a week ago. Surveymonkey aren’t a BPC member so I don’t have more details, though we should be getting some later. Regular readers will remember that Surveymonkey polled at the last general election and got the Conservative lead right, albeit getting both main parties too low. There are more details of Surveymonkey’s approach here.

Panelbase have final figures of CON 44%(nc), LAB 36%(nc), LDEM 7%(nc), UKIP 5%(nc), GRN 2%(-1). Fieldwork was between Friday and today, and obviously shows no substantial change from their previous poll.

Kantar‘s final poll has topline figures of CON 43%(nc), LAB 38%(+5), LDEM 7%(-4), UKIP 4%(nc). Fieldwork was between Thursday and today and shows a narrowing of the Tory lead to just five points – Kantar have previously tended to show larger leads. Note that there is a very minor methodology change here, Kantar have fixed the share of the 2017 vote coming from 2015 Conservative and Labour voters at 61% – I’m not sure exactly what that means, but it has only a minor effect anyway, increasing the Tory lead by one point. Tables are here.

YouGov‘s final poll for the Times has topline figures of CON 42%, LAB 35%, LDEM 10%, UKIP 5%, GRN 2%. Fieldwork was Monday to today. Minor method change here too – adding candidate names to the voting question, and reallocating don’t knows using past vote (which knocked down Labour support by just over a point). Full details here.

Survation‘s final poll (using their phone methodology, rather than their online one) has topline figures of CON 41%, LAB 40%, LDEM 8%, UKIP 2%, GRN 2% – the one point Tory lead is the closest we’ve seen, though effectively the same as Survation’s last poll. Fieldwork was Monday and Tuesday and tables are here.

BMG, who haven’t polled since back in 2016, have also put out a final poll. Their topline figures are CON 46%, LAB 33%, LDEM 8%, UKIP 5%.

Opinium have put out their final poll of the election campaign. Their final figures are CON 43%(nc), LAB 36%(-1), LDEM 8%(+2), UKIP 5%(nc). Fieldwork was between Sunday and today, so it is also the first poll we’ve seen with fieldwork conducted after the terrorist attack in London Bridge, though there’s no significant change from Opinium’s previous poll at the weekend. Full details are here.

This is the first poll to be badged as a final poll. Survation put out their final poll for Good Morning Britain this morning (showing topline figures of CON 42%, LAB 40%, LDEM 6%, UKIP 3% – tabs here) but final poll for GMB is not necessarily the same as final poll. We shall, no doubt, have a flurry of final polls from ICM, ComRes, YouGov, Panelbase, Kantar and others tomorrow, MORI on Thursday.

I mentioned yesterday that Ipsos MORI normally do their final poll on polling day itself, and got a few comments about whether this is allowed. Yes – it is. The rules on election day is that you cannot publish an exit poll (or any poll that’s based on the opinions of people who have already voted) while polls are still open. It’s perfectly fine to publish polls conducted before polls opened. MORI do their fieldwork on Monday, Tuesday or Wednesday like everyone else’s final poll… they publish on Thursday because they partner with the Evening Standard who publish around midday, rather than overnight.

There is only one GB poll so far today – ICM’s weekly poll for the Guardian, their penultimate of the campaign. Voting intentions are almost identical to their poll for the Sun on Sunday yesterday, with topline figures of CON 45%(nc), LAB 34%(nc), LDEM 8%(-1), UKIP 5%(nc). Fieldwork was Friday to Sunday, so will have been largely before the terrorist attack in London Bridge. Full tabs are here.

Survation will have a telephone poll out later tonight (probably midnight judging by past weeks’ timings) for Good Morning Britain, delayed for a day because of the terrorist attack. Other than that I expect most companies will now be looking towards their final call polls tomorrow, Wednesday or (if MORI stick their usual timetable) Thursday morning.