Presidential pollsters in the US have had some embarrassing failures. Here's a catalog of those miscalls, from the scholar who literally wrote the book on them.
The exit poll published at 10pm suggests the Conservatives could fall short of a parliamentary majority. Is it to be believed?
Pollsters must be as accurate as possible. How will they address the challenges revealed in the 2016 election, and other changes in the coming years?
People around the world were shocked when Hillary Clinton, ahead in many polls, didn't end up the U.S.' president-elect. But that doesn't mean the polls themselves were wrong.
Many pollsters are now eating humble pie.
Internet polls are offering up quite different results to phone polls. Here are a few suggestions as to why.
Sorry Boris, those with a bet at stake think we're staying put.