Princeton Election Consortium

election.princeton.edu · Personal blog · on HN since 2012

Neuroscientist Sam Wang's Princeton blog on election forecasting, polling statistics and gerrymandering.

What HN saysDuring election seasons commenters cite its win probabilities and call its model transparent and more accurate than 538's. They also reference its gerrymandering analysis.
36HN people shared it
26linked it in comments
12stories submitted
51story points
6 months agolast shared
2012people per year2026

Most-shared posts

  1. 1
    Homepage
    11 people · first shared 2012
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    Is 99% a reasonable probability?
    3 people · 9 points · first shared 2016 · 2 comments on HN
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    Scientific American’s gun error
    2 people · 24 points · first shared 2012 · 65 comments on HN
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    Death per Billion Miles of Travel
    2 people · 2 points · first shared 2015 · discussion on HN
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    Why Trump lost the election (2016)
    1 people · 3 points · first shared 2019 · discussion on HN
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    Gerrymandering creates a point of weakness
    1 people · 3 points · first shared 2013 · discussion on HN
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    Geek's Guide to Election Day 2012 [pdf]
    1 people · 2 points · first shared 2012 · discussion on HN
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    Nerds under attack
    1 people · 2 points · first shared 2012 · discussion on HN
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    Geek’s Guide to the Election 2012
    1 people · 2 points · first shared 2012 · discussion on HN
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    Google-Wide Association Studies
    1 people · 1 points · first shared 2016 · discussion on HN
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    Todays electoral vote histogram
    1 people · first shared 2016
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    Electoral college map
    1 people · first shared 2012
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What HN people wrote when they linked it

SkyMarshal · 2013-07-22
Which mailing list? There seem to be several on this topic. Also, you're probably right, there are at least three other prominent electoral college forecasters who write well, were as accurate as Nate, and who could possibly be contracted to provide the same analysis and commentary: Andrew Tannenbaum [1], Drew Linzer [2], and Sam Wang [3]. Unlike Nate, forecasting is not their primary career, but it's clearly a labor of love for them and who knows what could be worked out with the right offer. If I were in charge at the NYT I'd be starting up conversations with these and any others doing similar work, stat. [1]: http://electoral-vote.com/ [2]: http://votamatic.org/ [3]: http://election.princeton.edu/
jfc · 2012-11-03
Dr. Sam Wang, a neuroscientist at Princeton University, wrote a spirited defense of Silver on the Princeton Election Consortium blog (http://election.princeton.edu), where Wang also does some insightful statistical analysis on the Presidential election. Wang sometimes disagrees with Silver, but supports the notion of a data-driven approach. Fascinating stuff on his blog, too: he's running Bayesian prediction models, Random Drift, and has a popular meta-margin that is worth checking out. He also takes some delightful shots at journalists and others who are trying to keep the focus on political "horse race" reporting, instead of using more rigor. And he has a great sense of humor - his "Nerds Under Attack" post is hilarious - http://election.princeton.edu/2012/10/29/nerds-under-attack/
specialist · 2017-02-04
Just saw this. Belated response. Sorry. Excellent link, thank you. Redistricting is my #1 issue. I've been long I'm slowly warming up to the idea of voter efficiency. It'd likely moot the geometric based techniques, like compactness. https://en.wikipedia.org/wiki/Wasted_vote http://election.princeton.edu/2016/11/24/a-lower-court-win-on-partisan… http://gerrymander.princeton.edu Politically, I work on local issues. We recently formed a local working group. So far we're researching and networking. My personal policy goal is to have an open, transparent redistricting process. Regardless of the heuristics used. Modeled loosely on Iowa's system. Though I'm super partisan, all gerrymandering (disenfranchisement) makes me sick. I want to prevent scenarios like Ohio and Maryland. I do not yet know how voter efficiency standards will change my plans, goals.
oska · 2016-10-16
The Princeton Election Consortium currently has Clinton's win probability as: random drift 95%, Bayesian 98%. [1] [1] http://election.princeton.edu/
JumpCrisscross · 2016-10-13
The Princeton Election Consortium's model [1] has a better track record than 538. This year, it has been much less volatile than Silver's. It only measures state polls, and does so in a very transparent way. [1] http://election.princeton.edu
mikevm · 2013-07-23
> 538 is awash with numbers but the algorithms used to generate them are the very definition of "eye-of-newt and other secret ingredients". I agree. I much prefer the (simpler) work of Sam Wang from the Princeton Election Consortium (http://election.princeton.edu/) who did release MATLAB code of his work and his data sources so you could do it yourself. Somehow, Nate Silver got all the media attention though.
swang · 2012-11-09
Article doesn't mention Sam Wang. His confidence level for Obama winning was at 99% http://election.princeton.edu/
foobarqux · 2012-11-07
Silver's model does seem unjustifiably complicated. For a simple model that managed to predict the electoral college see http://election.princeton.edu
firebones · 2016-10-13
I like Nate Silver. He broke new ground. But I've grown less enamored this most recent cycle because his predictions seem to be a lot more of the Nostradamus type--pre-analyze outcomes on three possible resolutions, then get credit for being right. Most of his wins come because polls have a tendency to tighten up to the actual numbers the closer they are to the election, as any latent bias gets washed out. He gets graded on more accurate information, not when uncertainty is high. (This isn't inherently a problem, but it does expose why he 100% missed the Trump primary phenomenon...he's trying to address it with "fundamentals" and other alternate models, but this is just more hedging so that at least one story makes sense.) He's not deceptive about this--I will give him that. It's all in the open. But it seems to amplify a kind of narrative fallacy if these mistakes aren't revisited anew (rather than just saying "as predicted, since outcome C actually happened, it was due to voter bloc X doing it as we said." But I can't complain about a pundit class not giving actionable data--that's not their job. Silver's job is to add data to the discussion, and to stimulate the discussion. And I give him a "B" for that. That said, this cycle, I've rediscovered Sam Wang at http://election.princeton.edu/ and think he maybe gives a purer approach to analysis, one not so much driven by clicks. He doesn't seem to hedge as much as Silver.
cbd1984 · 2015-07-04
“I live in a rather special world. I only know one person who voted for Nixon. Where they are I don’t know. They’re outside my ken. But sometimes when I’m in a theater I can feel them.” — Pauline Kael (this is what she actually said) http://www.vanityfair.com/culture/2012/10/The-Fraudulent-Factoid-That-… This is why Nate Silver, who after all mostly does his work by taking polls as a whole seriously, continues to surprise some people: They live in a bubble. They don't see who the majority is actually supporting. They are actually surprised by election results, even if the polls have largely been pointing one direction consistently for months on end. (Silver ignores some polls and applies correction factors to others. This is due to those polls' demonstrable idiocy and/or bias, as empirically demonstrated by how far they are from reality when the real events happen.) Wang does pretty well, too, and his models are simpler: http://election.princeton.edu/ My point is, polls work, statistics is real, and numbers remain the primary way to determine which of two things is larger. Enter echo chambers if you want to, but don't live in one.
gruseom · 2013-01-03
This is a tour de force of reporting on empirical research in an area that could hardly be of greater social importance. Drum deserves 100x more attention for this than he got for breaking the Romney 47% video in September. Concidentally via http://election.princeton.edu/2012/12/22/scientific-americans-gun-erro… from a couple weeks ago, here's a link to Reyes' paper on the lead/crime theory: http://www3.amherst.edu/~jwreyes/papers/LeadCrimeBEJEAP.pdf And here's a striking critique of the Freakonomics abortion/crime theory, which I suppose most people here have heard of: http://www.economist.com/node/5246700?story_id=5246700 Someone inspected Donohue and Levitt's code and found a bug that meant they hadn't controlled for what they claimed they had. "Fixing that error reduces the effect of abortion on arrests by about half, using the original data, and two-thirds using updated numbers."
VintageCool · 2018-12-18
Sam Wang of the Princeton Election Consortium did commit to a prediction, in August 2016, that the 2016 would have some of the lowest polling variability on record. (I think that he declared something like 2.6% uncertainty.) http://election.princeton.edu/2016/08/21/sharpening-the-forecast/ And I think that he was very wrong on that count.
chasing · 2017-07-03
Most distortions in representation due to gerrymandering favor Republicans. So: The GOP is the more guilty party. http://election.princeton.edu/2012/12/30/gerrymanders-part-1-busting-t…
ValG · 2017-06-08
It seems like you're not reading what I'm writing at all. I literally said "they are not mutually exclusive. Also, you are misinformed, both parties 100% do this [1](or attempt to) - It just happens that Republicans are way better at it. Way better.[2] Either way, I don't care who does it, it must be stopped b/c it's not good for a democracy like ours. [1]https://www.washingtonpost.com/news/wonk/wp/2017/06/06/republicans-and… [2]http://election.princeton.edu/2012/12/30/gerrymanders-part-1-busting-t…
basch · 2016-11-08
The PEC final total is 323:215, not 307. http://election.princeton.edu/2016/11/08/final-mode-projections-clinto… PEC and DailyKos have converged today on P 323D:215R, S 51D:49R, H=R as their predictions.
qntty · 2015-09-22
According to this, it's only about 1 order of magnitude safer http://election.princeton.edu/2015/05/13/train-travel-is-incredibly-sa…
mratzloff · 2014-03-02
Stating that "the American People" voted for the Patriot Act repeatedly is ignoring the massive disenfranchisement of Democratic voters in states with Republican-controlled legislatures, and the gerrymandering that leads to a lock on US House seats[1]. The goal of the Republican Party is to win government by hook or by crook, and lately it's been the latter. Without this gerrymandering, it's debatable how things might have gone otherwise. Colbert might not have so much faith in the system if he played the Redistricting Game [2]. [1] http://election.princeton.edu/2012/12/30/gerrymanders-part-1-busting-t… [2] http://www.redistrictinggame.org
Osmium · 2012-11-15
Exactly. A recent example I saw of this was the Princeton Election Consortium, http://election.princeton.edu/electoral-college-map/
kmfrk · 2012-11-03
This is a good indicator of Obama's chances: http://election.princeton.edu/history-of-electoral-votes-for-obama/. Barring external events, you can probably put a fork in it.
thangalin · 2026-04-26
https://i.ibb.co/qM5xgPZ6/fascism-five-stages.png The NSF is an independent federal agency that funds roughly a quarter of all basic academic research in the US, laying the groundwork for technologies like the Internet backbone and MRIs. The NSB is its governing body, composed of top scientists who serve staggered six-year terms specifically so no single administration can wipe out the entire board at once. That continuity is designed to insulate scientific priority-setting from political pressure, ensuring American research funding is directed by objective merit rather than political patronage. Dismissing all members simultaneously removes the exact oversight mechanism built to prevent political offices from dictating scientific agendas. From a political science perspective, this is an institutional move Robert Paxton described in his stages of fascist development. His framework identifies patterns where political actors weaken or bypass independent bodies designed to constrain executive power. In Paxton's fourth stage, the exercising of power, an executive consolidates control by actively dismantling these checks. Centralizing control over scientific governance by firing the board for opposing a budget cut is hollowing out an independent institution; it's a pathway Paxton documented whereby institutional checks are weakened in ways that accumulate over time. https://election.princeton.edu/wp-content/uploads/2016/12/Paxton_Five-…
Sacho · 2016-11-09
Sam Wang called a Trump win practically impossible: https://twitter.com/samwangphd/status/788544053059153924 http://edition.cnn.com/videos/tv/2016/11/05/poll-expert-i-will-eat-a-b… http://election.princeton.edu/2016/10/10/some-secrets-are-not-all-that… Specifically the last link exhibits the smugness this article is talking about. Here's a quote from it: > This seems like a good time to reveal one of the Princeton Election Consortium’s own secrets. Thankfully, it does not involve an Access Hollywood video. Here it is: poll-based Presidential prediction is not very hard. I guess that is a pretty boring secret. Sorry. Sam Wang was predicting a 95% chance of winning for Hillary. I guess we're in the 5%. I'd further like to point out that Hillary is right now winning the popular vote by 0.1%, and the NYTimes has adjusted their prediction down to 0.5% when all the votes are tallied. Obama's win over Romney was slightly less than 4.0%, and he won 332-206 in the electoral college. Here's how Sam Wang describes it: > President Obama’s re-election in 2012 carried even less suspense: he never lost the lead to Romney. The closest he came was right after the first debate, though even then he was slightly ahead. The pressure to express a Trump sentiment is not high in a non-swing state; If you are in an entrenched blue state, people do not care about you(guaranteed democrat win anyway). If you are in an entrenched red state, then you have plenty…
paulmd · 2016-10-18
Clinton doesn't need a conspiracy to win, it's as simple as that. She's polling at +8 nationally, if the election were held today she has at least a 75% chance of a landslide election (320+ EVs) if the election were held today, and there's zero indication that Trump's numbers have any upward mobility whatsoever at this point. In fact, the Republicans will be lucky to hold onto the House if things keep going the way they have the past couple weeks. There's no reason to do a dumb attempt at stinging a has-been like Assange. Literally all it could do is hurt her (if it backfired and people took Assange seriously). http://election.princeton.edu/todays-electoral-vote-histogram/ Hanlon's Razor says that if it looks like some dumb idiot ("small business owner") who thought he could hire Assange for his TV commercial and then got his jimmies rustled that Assange said no then it probably is that instead of an international conspiracy. But even if we're moving into conspiracy territory, Clinton doesn't have the motive here.
smt88 · 2021-11-15
> When the Democratic party wins they gerrymander as much as the Republicans. Absolutely false. Democrats do it far less, in fewer places, and with much less effect on outcomes. Please don't "both sides" this issue. In fact, Democrats changed laws to try to end gerrymandering in three states they won: Oregon, Virginia, and Colorado[1]. They did this against their own self-interest and likely ended up helping Republicans[2]. Multiple independent, transparent measures of extreme gerrymandering have found that Republicans do it more[3]. Republicans have also been found by courts to be using racial gerrymandering to dilute the votes of minorities over[4] and over[5]. That shouldn't be surprising, because we now know that racial gerrymandering was an explicit tactic that Republicans illegally pursued[6]. 1. https://apnews.com/article/redistricting-579984fa53d997956749eb3d38202… 2. https://www.theatlantic.com/politics/archive/2021/10/democrats-redistr… 3. https://election.princeton.edu/2012/12/30/gerrymanders-part-1-busting-… 4. https://www.reuters.com/article/us-usa-court-gerrymandering/virginia-r… 5. https://www.theatlantic.com/politics/archive/2017/05/north-carolina-ge… 6. https://www.newyorker.com/news/news-desk/the-secret-files-of-the-maste…

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