This is a post not so much focused on the news of the moment but one in response to a question I get a lot. It’s also a post I’ve wanted to do because I’ll be able to refer back to it as we go forward through the final sprint of the campaign. The question is a really basic one: Given what happened in 2016 and 2020, how much confidence can we have that the current polls are giving us an accurate or realistic picture of the current campaign?
Let me deal briefly with what are important but mostly obvious caveats. Polls, or really poll averages, are almost never exactly right and not infrequently they suffer from systemic error. So can we rely on them? No. That would be silly. Most of the time they are fairly accurate predictors of election outcomes. But in close races, a “normal” polling miss of a point or two can change the result. But what people who ask me this question are really asking is whether we should expect that polls are underestimating Trump’s strength as they did in 2016 and 2020.