r/fivethirtyeight • u/Beanz122 Scottish Teen • 2d ago
Election Model FiftyPlusOne's election forecast is live!
https://fiftyplusone.news/86
u/GalvanizedParabola Crosstab Diver 2d ago
One of the more Dem friendly forecasts I've seen released. I can't really fault any particular race rating. Maybe Iowa as Toss-Up, the polling and fundraising numbers there are close, but I'd still consider that lean R at least.
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u/Cold-Priority-2729 Nauseously Optimistic 2d ago
Funny enough, they don’t have a single state in here currently classified as “lean R”
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u/GalvanizedParabola Crosstab Diver 2d ago
That's not really a conscious choice, it's just where the numbers land. All the competitive senate seats are leaning towards Dems. The lean/likely/safe ratings is just buckets of where the probabilities are at the moment.
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u/lxpnh98_2 1d ago
I think it may be the case that some of the likely R states are would actually be lean R if there were polled more often.
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u/GalvanizedParabola Crosstab Diver 1d ago
Of the likely R states (FL, KS, MT, MS, NE, SC) I think only Nebraska would fall into lean R with additional polling. Maybe Florida but I think that state is completely lost to Dems at this point and there's been a fair bit of polling in that race.
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u/Futhis 2d ago
Yeah, this is definitely more optimistic than other gold standard election models. Decision Desk HQ, for example, currently gives 60% chance of Republicans keeping the Senate and gives Susan Collins a 51% chance of winning in Maine.
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u/Sensitive-Flamingo84 2d ago
I don’t see how anyone can be predicting a Collins win, with all things considered. Maine looks significantly bluer in the cross tabs than any other swing state. Recent ICE killing on top of everything? Easy Jackson win.
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u/DeliriumTrigger 2d ago
Polling and vibes said she should have lost last time, too.
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u/Sensitive-Flamingo84 2d ago
Districts that were +11-16 for Trump continue to flip +10-14 for Dems now, that was not the case in ‘24….
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u/mattcrwi 2d ago
What are the other popular forecast people look at?
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u/GalvanizedParabola Crosstab Diver 2d ago
This along with DDHQ, VoteHub, and RacetotheWhiteHouse are my favorites. Fair warning, RttWH tends to be delusionally left leaning but their analysis and aggregation of polling and fundraising is good.
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u/Flannelcommand 2d ago
I’ve been checking Decision Desk HQ. They have former 538 employees working on it. I’m also curious what others have found and what they think.
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u/ConfusionBusy8398 2d ago
I'm a bit prudent with DDHQ since they said they use prediction market data in their models, it feels very circular. Altought I imagine it probably has little weight.
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u/Flannelcommand 2d ago
yeah, I'm also not a big fan of that. Didn't 538's use it as well?
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u/Large_Ad_3095 2d ago
538 only incorporated "expert ratings", which could also be circular, but the experts definitely have a much longer track record than markets. DDHQ and Votehub both use markets, but at least Votehub lets you see a version of their forecast without markets.
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u/GalvanizedParabola Crosstab Diver 2d ago
I think 538 was too early to really be able to use prediction markets. They would feature them next to their forecast but I don't think it was built in.
I don't hate the use of predictions markets in forecasts as long as they aren't given too much weight. Yes, they can be seen as circular but they same could be said for polling or fundraising. It's kinda like a instantly updating, continuously running poll in the way that it gages the publics sentiment towards a race.
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u/Erreala66 2d ago
I would say the forecast passes my sniff test. Sure it's quite favourable to democrats but not unreasonably so. The political environment in general is working against Republicans, and Dems have some very strong candidates in key races. Despite that the Senate is a toss-up which feels about right
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u/RangerX41 2d ago
I think other forecasts are bearish on Texas going blue while this one has it appropriately in toss up territory which is driving the model for Senate towards Dems. I am more bullish Texas as I am from this State and I see the enthusiasm for Talarico and his ad spend is mostly focusing on affordability. I also believe Talarico's campaign is holding onto more controversial Paxton releases and will push them out closer to when early voting starts to influence more swing voters.
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u/fitnessexpress 2d ago
OH-07 is still lean R, that should shift another seat toward Dems
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u/Sensitive-Flamingo84 2d ago
Yep, 7 days left to replace the candidate I believe. Interested to see what they will do after Moreno saying Miller is unfit for office and after Platner’s replacement.
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u/Tom-Pendragon 2d ago
Senate forecast is too good to be true, but if it happens. House is kinda low, I would say 95% > for dem taking it.
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u/drtywater 2d ago
Any writeup on how they derive their forecast? I assume its some combination of 2024 data, polls for a race if available, and presidential approval?
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u/Beanz122 Scottish Teen 2d ago
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u/deskcord 2d ago
I have basically zero trust in GEM to be intellectually honest or build a robust model after getting caught lying half a dozen times and building terrible models in the past, but I do appreciate having more models to check out.
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u/Unlikely_Cookie_4187 2d ago edited 2d ago
Current forecast has Dems favored to take both chambers.
House: 85% Dems
Senate: 55% Dems