
Will it be a closer race as the election approaches?
Cllr Denzil Coulson responded to my post on the seventeen-point post-DC speech poll lead with a Tweet that a 45% Conservative poll rating at the next election was “very unlikely”. Lo and behold, another poll put the Conservatives on precisely 45%, which I duly tweeted for his attention.
“You and I know that polls tighten during the election campaign”
came the response via Twitter and it’s not an unreasonable one, so I thought I’d look into it, starting in 1992. Back then, polls weren’t as frequent or, as we subsequently came to realise, as accurate as now. But looking seven months out from John Major’s photo-finish election win, ICM/Guardian on 14 September had Con 39, Lab 39 and LD 17. That was the same result in MORI/Times 10 days later. By 12 October, there was a Lab 43, Con 41 LD 12 poll done by ICM/Guardian. I’m not being selective – those are the polls I can find. In the end, the result was Con 42, Labour 34, LD 18. Not much sign of a tightening there – except for one away from the October 12 ICM Labour lead.
In 1997, it is a slightly different story. A November 1 MORI poll has Lab 54, Con 30, LD 12 and a Lab 47, Con 34, LD 15 poll followed the next day by MORI. All other polls in November had Labour above 50 and the Conservatives on around 30. The final result - Lab 43 Con 30 LD 17 – is indeed a tightening of the polls seven months out; but which way are the polls tightening? As in 1992, the move was away from Labour as people who, when questioned, said they would vote Labour stayed at home.
In 2001, four polls in December put Labour on around 46, the Conservatives on 33 and LDs on 15. The actual result – Lab 41, Con 32 and LD 18 – was similarly due to Labour voters staying at home, a lack of enthusiasm for the Conservatives and aggresive Lib Dem campaigning. Yes, a tightening – but a tightening away from Labour. During the last election polls seven months out showed Labour at around 38, the Conservatives on 31 and the Lib Dems on 21. The election result was Lab 35, Con 32 and LD 22 – very close to the polling figures in November.
A few things to note:
1) The Labour vote has always been lower in the election than the average polling figures seven months out, probably due to lower turnout among Labour voters
2) The Conservative vote in polls seven months out since 1992 has been very close to the results on the night
3) The Lib Dem vote has always been higher in elections than polls because they campaign so well
It is also worth stating the obvious – that it depends which polls you look at and where the votes are cast is more important than how many are cast. But the evidence above suggests that Labour’s percentage on the night will be lower than their current polling, that the Lib Dems will do better (just as well given that they are on 16% today)and that the Conservative vote will hold around about where it is now ie the average for the month.
We are, of course, all hostages to fortune and whatever surprises the next seven months may hold. But a quick glance through records shows that the Lib Dems relying on a tighening of polls during an election campaign to produce a hung parliament might be a little misguided. It’s still a possibility if we don’t work hard enough, though.




