Non-registered pollster gives Labour a 17% by-election lead
But how much can we trust a pollster that’s not in the BPC? Ben Brogan is carrying a report that a new poll for the Scottish Daily Mail has Labour 17% ahead in Glasgow East. This comes as the campaign goes into its final weekend. The pollster, Progressive Scottish Opinion, is not listed as a member of the British Polling Council and it is hard from its website to work out what its methodological approach is. We do not know…