• TropicalDingdong@lemmy.world
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    4 months ago

    If you’ve been following the polling there is nothing different or unique about this one. It’s consistent with pretty much all polling over the past 400 days. Biden is losing. Polling is definitely still broken, but it’s consistent. There is no fuckery.

    Biden needs to be up by 4-12 in those states if he wants to win.

    See my posts in !data_vizualisations@lemmy.world . I make a map of the offset in polling Biden needs to win a given state based on the fact that polls consistently overestimate how well Biden will do, and underestimate how well Trump will do.

    When you see these poll numbers, you should subtract 4 for Biden, and add 8 for Trump. That was the offsets we observed from the 2020 election.

    So keeping in mind data you already have about Trump, Biden, polling and it’s departure from real election results, it’s not even a question. Mortgage you house and out all your money on Trump to win. You have a differential polling error of 12 points in a Biden Trump head to head. Biden needs to be in the mid to high fifties across the board to have a chance.

    He’s in the low forties.

    If you don’t end up clicking the link: Relative polling error for Biden V Trump, 2020.

    • assassin_aragorn@lemmy.world
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      4 months ago

      This is quite interesting, thanks for sharing!

      My only critique is that I don’t think 2020 skew is valid anymore. After Dobbs, the landscape seems to have significantly changed. 2022 was predicted to favor Republicans by a strong margin, but it ended up being a tie pretty much. And a lot of special elections have had surprising results too.

      My personal opinion is that polling methodology may have overcorrected for 2020, and we’re getting a picture now that’s skewed right, versus left from beforehand.

      It’s really hard to say though. There weren’t a lot of great polls to start with in 2022, and special elections don’t have significant polling either. It’s a weird position where the only good data set we have is from 2020, but there have been so many changes in the national environment that we have reason to doubt the skews from 2020 are still valid. But at the same time, what else do we have? Vibes and feelings and anecdotes. And the engineer in me dislikes dismissing data in favor of vibes. It’s important to consider still I think, because none of this is infallible. But I honestly couldn’t tell you what the “right” outlook to have is. Maybe I’m onto something, but maybe I’m just letting optimism bleed into my better judgement.

      All I know is that I don’t know.

      • TropicalDingdong@lemmy.world
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        4 months ago

        I mean if we’re stepping off the data into editorialism, Trump out performed all other Republicans in 2020, like he also did in 2016. As well, Trump endorsed candidates struggled in 2018, and 2022, and special elections. My read of this evidence and I’ve seen it suggested elsewhere, is that whatever property it is that causes Trump to consistently over perform isn’t transitive. So evaluating how well Trump will perform against how well Republicans are performing is misguided. You should evaluate candidates individually, and that would agree with their performance.

        Also, this is one poll. The aggregate of polling agrees with this one poll. The minor methodological changes they make from year to year are infact extremely minor and they are doing the appropriate statistical accounting afaict. There is nothing weird or wonky about these polls: Biden is just performing very very poorly. I’ve been saying this for months to an onslaught of downvotes from people who simply don’t want to believe this to be the case.

        Finally, I’ll argue that the ‘right’ outlook is always the one that aligns most closely with the data. We should believe stories we tell about data less than data itself. There is nothing to suggest that this election will really be anything that different than the 3 previous, and in terms of landscapes, the best proxy appears to be 2016 in terms of contested states. You should believe the data that is telling you that Joe Biden is losing this election. Biden has been setting up to lose the upper Midwest since December. These are the same states Hillary lost.

        maybe I’m just letting optimism bleed into my better judgement

        I agree. It’s also what the political pundit class did when they completely wiffed on 2016, and it’s what they’re doing right now. 90% of Lemmy also agrees with your sentiment, and in both Lemmy’s and the punditry’s refusal to be critical of Biden, to drag him towards more popular policies, they’re setting Trump up for victory.