I think I can assume everyone reading this is already aware there will likely be an early general election on the 8th June. There will be lots of polling ahead, but here are a few initial thoughts:

The overall polling position is a strong lead for the Conservative party. There is some variation between different polling companies, but all the polls are showing robust leads for the Conservative party, most are showing extremely strong leads up in the high teens, a few breaking twenty. As the polls currently stand (and, obviously, there are seven weeks to go) a Conservative majority looks very, very likely. The size of it is a different matter – the twenty-one point lead in the recent YouGov, ICM and ComRes polls would produce a majority in excess of a hundred, a nine point lead like in the Opinium poll at the weekend would only see a small increase in the Tory majority.

It’s harder to tell from the polls how well the Liberal Democrats will do. The swing between Labour and the Conservatives will normally give us a relatively good guide to the outcome between those two parties. The Lib Dems are a trickier question – the polls generally show them increasing their support, and this has been more than backed up by local by-elections. How it translates into seats is a more difficult question, my guess is that their support will be concentrated more in areas that voted Remain and the Lib Dems have a history of very effective constituency campaigning. I would expect them to do better in terms of seats than raw swing calculations would suggest.

The elections will be the test of to what degree pollsters have corrected the problems of 2015. The BPC inquiry into what went wrong at the general election concluded that the main problem was with sampling. Polling companies have reacted to that in different ways – some have adopted new quotas or weighting mechanisms to try and ensure their polls have the correct proportions of non-graduates and people who are have little interest in politics; others have instead concentrated on turnout models, moving their turnout models to ones based upon respondents’ age and social class, rather than just how likely they say there are to vote; some have switched from telephone to online (and some have done all of these!). The election will be a chance to see whether these changes have been enough to stop the historical overestimation of Labour support, or indeed whether they’ve gone too far and resulted in a pro-Tory skew. I’ll look in more detail at the different methodological approaches during the campaign.

Elections that look set to produce a landslide results may bring their own problems – in 1983 and 1997 (both elections that mostly relied on face to face polling, so not necessarily relevant to today’s polling methodologies) we saw polls that largely overstated the victorious party’s lead.

The local elections will still happen part way through the campaign. The local elections will still go ahead at the start of May. It’s been a long time since that happened – in recent decades general elections have normally been held on the same day as the local elections – but it’s not unprecedented. In 1983 and 1987 the local elections were in May and the general elections followed in June. Notably they were really NOT a good predictor of the general election a month later. Comparing the Rallings & Thrasher estimates for the local elections those years with the subsequent general elections, in the 1983 local elections the Conservatives were ahead by 3 points… they won the general election the next month by 14 points. In the 1987 local elections the Conservatives were ahead by 6 points, in the general election a month later they were ahead by 11 points. In both cases the SDP-Liberal Alliance did much better in the locals than the general a month later. In short, when the local elections happen in May and Labour aren’t 20 points behind don’t get all excited/distraught about the polls being wrong… people just vote differently in local elections. It may well give the Lib Dems a nice boost during the campaign though.

The Fixed Term Parliament Act probably ended up a bit of a damp squib. There is still a vote to be had tomorrow and the government still need two-thirds of all MPs so it’s not quite all tied up, but as things stand it appears to have been much less of an obstacle than many expected. There was no need for a constructive vote of no confidence, the opposition just agreed to the election. The problem with the two-thirds provision was always the question of whether it would be politically possible for an opposition to say no to a general election.

The boundary changes obviously won’t go ahead in time for the general election. However, it does not mean they won’t happen. The legislation governing the boundary reviews doesn’t say they happen each Parliament, but that they happen each five years. Hence unless the government change the rules to bring them back into line with the election cycle the review will continue to happen, will still report in 2018, but will now first be used in the next general election in 2022. If the election results in an increased Tory majority it probably makes it more likely that the boundary changes will go ahead – getting changes through Parliament always looked slightly dodgy with a small majority.