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A Tale of Two Polls

 Member Newsletter
September 23, 2024 3:00 p.m.

I wanted to take a look at the polling news from this weekend and try to help you make some sense of where the race is. Obviously I can’t tell you what’s going to happen in November or necessarily which polls to believe. But I think I can provide some overview of and context for why different polls might seem to show different things, and how to think about that difference. Yesterday, NBC News released a poll showing Harris beating Trump by 5 points nationwide and 6 points if third-party candidates were added. Another national poll from CBS showed Harris 4 points up over Trump nationwide. But it was the NBC poll which got the most attention because poll watchers still give some extra credit to the big, largely phone-based polls from the major national media organizations.

Obviously, no single poll should bulk too large in anyone’s thinking. But what gave the NBC News poll a lot of attention wasn’t so much the result, which was obviously good for Harris, as the fact that it tended to match and confirm and perhaps amplify the trends we’ve seen from a lot of other polls since the debate. Those polls show Harris solidifying a small national lead, consolidating small leads in the Blue Wall states while running about even through the southern tier swing states. There’s been a large volume of polls showing that. But people wanted to see one of those big, high-priced, phone-based polls say the same thing. In part, that was because you have the Times-Siena poll, which as I’ve explained in the past is very respected but also has a totally disproportionate impact on the media narrative about the race, saying something different. That poll has continued to show a much closer race than the great majority of other polls. A nationwide poll from last week from Times-Siena showed a tied race at 47 percent after one a few weeks earlier that showed Trump ahead by 1 percentage point. So that NBC poll wasn’t just another solid poll for Harris. It made it seem a bit more like Times-Siena is an outlier. Not wrong necessarily but an outlier from the majority of campaign.

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