Those voters who abandoned Labour in May could be lost to them for the long term

Lord Ashcroft’s polling gives some insight into how sticky the defectors might be. It isn’t pretty reading for their new leader.

Lord Ashcroft: New polling – What do Labour’s supporters, and former supporters, think about the Party’s future?

If, five years ago, Labour misunderstood what it needed to do to win, today it seems to be wondering whether winning is all it’s cracked up to be.

Lord Ashcroft: How the voters saw the 2015 campaign

My new book collects the reports from my focus groups and explores what the public really thought of the election (when they thought about it at all).

London Mayoral candidate selection. Zac Goldsmith wins over half the vote in our Party members’ poll

The view of London members may be sharply different from those based elsewhere. But it is hard to argue that this finding isn’t promising for the Richmond Park MP.

Iain Dale: The Left thinks the voters are stupid. No wonder Labour lost.

Plus: ComRes – waving. Harris-Quinney – drowning. Bring on Zac Goldsmith. Welcome, Paul Abbott. Jeremy Corbyn, my part in his rise. And: I will miss Charles Kennedy.

Robert Syms MP: After the victory – why the polls were wrong

Pollsters should have had follow-up questions to UKIP and Green supporters to assess their likelihood of switching to their preferred main party choice.

Quentin Langley: A secret of our recent success. We understand the Left better than it understands us.

We think they’re mistaken. They simply think we’re evil. And their error may have contributed to the failure of the polls.

Iain Dale: Woe, woe and thrice woe. The agony of the pollsters and pundits.

Plus: All praise, Lynton Crosby! Breibart – falling apart? The Daily Mail: Chappers out, Shippers back?

Don’t let Crosby ban Gimson

There’s no case for barring opinion polls in the run-up to an election – and, with them, our very own Seer of Seers and Prognosticator of Prognosticators…

Graeme Archer: Trust me, I’m a statistician. And therefore precisely wrong.

A period of silence from the pollsters would be welcome. And maybe we should consider a period of poll-purdah before a national vote.

Lord Ashcroft: We have a chance to build a party no-one need feel shy about supporting

The Conservative Party has an unexpected opportunity to prove it is the party for people who are optimistic, open-minded and self-reliant.

Are council elections a better guide than opinion polls to future General Elections?

Poor results in London for the Conservatives and good results elsewhere were foreshadowed.

Lord Ashcroft: My new poll – why did people vote how they voted, and when did they decide?

I have polled 12,000 people on the values and motivations which underlie their voting.

Lord Ashcroft: My final round of marginals polling

The last ten surveys contain mixed news for all parties and some noteworthy results.

Election campaigns change nothing and everything

The final result probably won’t differ much from what we expected a month ago. But even small differences matter.