Eastleigh by-election: Four points from Ashcroft’s exit poll

The result might be in, but that doesn’t mean there’s nothing useful polls can tell us about the Eastleigh by-election. What swayed the voters? Why did they vote as they did? And — perhaps of most interest — how might they vote next time?

Yesterday, Lord Ashcroft’s polling operation phoned 760 Eastleigh residents, 654 of whom had voted in the by-election. All sorts of warning labels need slapping across the figures: they aren’t weighted, so are subject to a much higher risk of selection bias than other polls, and even if the sample were representative and random, the margin of error would be 3.5 points (and higher for subsets of those 760 respondents). But here are a few interesting nuggets from the data:

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