Polling Analysis: Amongst likely voters Opinium has Starmer with 4% lead over Johnson as best PM
A guest slot from Wulfrun Phil on latest Opinium poll Published responses to supplementary polling questions are not routinely filtered to limit responses only to those likely to vote in a General Election. That can distort interpretations of “Best PM” polling, because only the responses from those who will vote are ultimately relevant. Helpfully, Opinium provide so much rich detail in their data tables here that we can apply the filtering ourselves. In their latest poll, the full unfiltered sample…