The best test of a pollster is not how they’re currently doing against other firms but what happened last time they were tested
I am afraid that I have to disagree with David Herdson on his latest Saturday thread about YouGov understating Labour. Firstly you cannot judge pollsters’ based on their current surveys when less than 5 weeks ago they were tested against a real election involving real voters. In the two charts above I compare LAB and LD vote shares for the May Euros in their final published polls. Just two of them can claim to have come out of the election…