Politics polls are notoriously inaccurate for some of same reasons you mention ie detection. As a former political reporter, I became aware of this a long time ago. Getting a true sample of voters who will go to the polls is difficult, and what is reported re polls often is inaccurate because people often don’t want to participate or are not reachable by cell phones, etc. Too much attention is paid to flawed polls vs issues pre-election. Detection of the popular vote ahead of an election is hard to accomplish.
Politics polls are notoriously inaccurate for some of same reasons you mention ie detection. As a former political reporter, I became aware of this a long time ago. Getting a true sample of voters who will go to the polls is difficult, and what is reported re polls often is inaccurate because people often don’t want to participate or are not reachable by cell phones, etc. Too much attention is paid to flawed polls vs issues pre-election. Detection of the popular vote ahead of an election is hard to accomplish.