Sign in

Daniel Donner

@donnermaps.bsky.social
4.6K followers 817 following 576 posts

Contributor @the-downballot.com. Focusing on data, maps, and demographics. Find our data (and the CD hexmap template!) at the-db.co/data

PostsRepliesMedia
Reposted by Daniel Donner
Danielle Kurtzleben @titonka.bsky.social · 28/09/2026
The masculinity politics beat continues to be very necessary. goodauthority.substack.com/p/republican...
2347796
Reposted by Daniel Donner
Aaron Becker @aaronjbecker.bsky.social · 27/09/2026
Lake Erie turned toward autumn in a single week. Every hour of its surface currents, 16 to 23 September 2026, colored by water temperature: the surface lost about 6°F in seven days. Data: NOAA Great Lakes Operational Forecast System (model) #LakeErie #GreatLakes #dataviz
14016
Daniel Donner @donnermaps.bsky.social · 25/09/2026
There's still more to show in the relationship between primary votes and the House popular vote! You can plot the data in graph below as a scatterplot. But a) it's obvious from the original graph this is a bad idea and b) it's not too helpful if you want to predict things. But...
A scatterplot of House popular vote margin versus national primary margin in midterm elections from 1918 to 2022. While there is a decent regression for the data, they fall in a wide band, such that any prediction you try to make will not be helpful. For instance, this year we would expect a House popular vote margin between about R +15 or so and D +12 based on the primary margin of D +11. Not useful at all!
244
Reposted by Daniel Donner
The Economist @economist.com · 24/09/2026
Deaths now outnumber births in reliably Republican counties for the first time since at least 1982. We explain how this may already be affecting voting patterns in America bit.ly/471apDL
84877288
Daniel Donner @donnermaps.bsky.social · 24/09/2026
This is why diesel prices - which selectively affect Trump voters and rural areas in particular - matter for the election. www.kff.org/public-opini...
Chart showing that 59% of Republican rural voters who are dissatisfied with Trump on the economy are absolutely certain to vote, compared 79% of Republican rural voters who approve of Trump on the economy.
085
Daniel Donner @donnermaps.bsky.social · 24/09/2026
From the NYT/Press Herald/Siena Maine poll crosstabs: Maine likely voters prefer Democratic control of the Senate by 55-43. Including... 13% of those who are voting for Susan Collins. www.nytimes.com/interactive/...
8366
Daniel Donner @donnermaps.bsky.social · 24/09/2026
If we could go back in time to use the national primary margin to predict the midterm House popular vote with the data available at that time, how well would it have done? Pretty well overall, with some significant misses like 2006. (Note we see no warning signs of a miss like 2006 for this year.)
Graph showing the actual House Popular vote margin compared to that predicted by the primary margin. Major trends match, and about half the time the prediction is very close.
211036
Reposted by Daniel Donner
Carl Quintanilla @carlquintanilla.bsky.social · 24/09/2026
WSJ: The AI build-out is on track to become the biggest economic bet in US history, dwarfing the investments made to fund other huge US infrastructure projects — such as the railroads, the highway system and the plumbing for the internet.” (via Jefferies)
37503180
Daniel Donner @donnermaps.bsky.social · 23/09/2026
Yesterday we showed how important primary turnout can be on a national level. But there's interesting things going on at the regional level, too. Most notably, in the core of the South, Democrats *outvoted Republicans* for the first time in decades in the primaries! (thread)
Total primary midterm votes in the core of the South from 1918 to 2022 showing a recent Democratic surge. States include VA, NC, SC, GA, AL, MS, LA, and TX.
434299
Daniel Donner @donnermaps.bsky.social · 23/09/2026
Yesterday we showed you how the sum of primary votes in all the states can predict midterm election outcomes surprisingly well. But that's not all! There's also some individual state primaries that appear to be bellwethers. Here is New Hampshire since 2002. Note the two different axes.
A graph showing the changes in primary margin in midterm years match the changes in House popular vote margin for New Hampshire. While the magnitude differs, the direction and relative change is nearly identical.
2213
Reposted by Daniel Donner
G Elliott Morris @gelliottmorris.com · 23/09/2026
Yes. here you go. Trump’s approval is significantly below where it was in 2018
31809172
Daniel Donner @donnermaps.bsky.social · 22/09/2026
We were pretty surprised to find such a clear relationship between primary vote margins and the House popular vote stretching across decades with such different political environments. But there's some years where one zigs and the other zags. What happened there? We'll start with 1966.
14811
Daniel Donner @donnermaps.bsky.social · 22/09/2026
When I first calculated these numbers a few weeks ago, the resulting prediction seemed awfully rosy! But the numbers say what the numbers say. Now, we've had a half dozen double-digit generic ballot D leads over the last week or so, culminating in a D +14 YouGov/Economist poll just this morning.
1163
Reposted by Daniel Donner
Charlie Hunt @charlesrhunt.com · 22/09/2026
While we're all huffing hopium, here's a chart from my forthcoming @pspolisci.bsky.social article using data from @the-downballot.com. In the last three midterms, special election overperformance in swing districts closely tracked swing district overperformance in the general. Now look at 2026.
2289
Reposted by Daniel Donner
Washington Post Data Team @wpdatateam.bsky.social · 22/09/2026
NEW: Megadonors have now pumped more than $1.7 billion into the midterms. The figure includes a newly disclosed $10M from the crypto billionaire Winklevoss twins, who gave MAGA Inc while crypto regulation was on the Hill. Meet all 50 of the top donors here: www.washingtonpost.com/elections/in...
1710469
Reposted by Daniel Donner
Mike Zaccardi, CFA, CMT @mikezaccardi.bsky.social · 21/09/2026
US jet fuel prices have climbed back toward their post-Iran-conflict highs, keeping pressure on airline fuel costs. Markets @soberlook
414240
Daniel Donner @donnermaps.bsky.social · 20/09/2026
If you wanted to design a policy to hurt Trump voters in particular, a diesel fuel price increase would be very effective. Three states - WY, ND, AK - even use more diesel than gasoline. Details by state; not all use is paid for by residents of course: www.eia.gov/dnav/pet/pet...
Chart showing diesel usage per person in 2024 by state. At the top, Wyoming, North Dakota, and Alaska are at about 20 barrels per person for the year. The only blue states near the top of the chart are Maine and New Mexico. At the bottom is California, Florida, Delaware, Michigan, Maryland, and New Jersey, which all use about 2.5 barrels per person.
721171
Reposted by Daniel Donner
FiftyPlusOne.news @fiftyplusone.news · 18/09/2026
If it feels like every poll you’ve seen this year came from a Democratic campaign and showed a toss-up, you’re not imagining things. Dem. internals make up an all-time high share of internals this year, and are showing better margins than 2018 in red states. blog.fiftyplusone.news/p/why-does-e...
blog.fiftyplusone.news
Why does every poll seem to show a tossup now?
Campaigns see internal polls as tools for fundraising
25418
Reposted by Daniel Donner
Wesleyan Media Project @wesmediaproject.bsky.social · 17/09/2026
Broadcast advertising volume remains strong, despite more and more spending on digital platforms, with House and Gubernatorial-race ad volumes reaching record highs.
132
Reposted by Daniel Donner
Jamie Dupree @jamiedupree.bsky.social · 16/09/2026
House GOP leaders cancel votes on Thursday - sending lawmakers home later today until after the elections. That means the House can avoid a vote on the Hegseth impeachment plan from Rep. Thomas Massie R-KY.
79701287
Reposted by Daniel Donner
G Elliott Morris @gelliottmorris.com · 16/09/2026
We do this! Charts at the bottom of the linked page. D+10 is 245 seats in the House and 52 in the Senate fiftyplusone.news
916024
Reposted by Daniel Donner
Carl Quintanilla @carlquintanilla.bsky.social · 15/09/2026
“.. The cost of hiring an oil tanker on the industry’s benchmark trade (Middle East to the Far East) route has topped $1 million a day for the first time -- a year ago, it was less than $100,000 a day.” - @javierblas.bsky.social
501077464
Reposted by Daniel Donner
Owen Winter @owenwntr.bsky.social · 15/09/2026
Great case of "land doesn't vote, people do" in Sweden
816052
Reposted by Daniel Donner
Karim Douieb @karimdouieb.bsky.social · 14/09/2026
⚡️Just finished a data story I had a lot of fun building: 25 years of Europe’s electricity mix, country by country. The number that kicked it off: in 2025, wind + solar ☀️💨 generated more electricity in the EU than all fossil fuels combined ⛽️ stories.strata.electricity-mix.jetpack.ai
1195
Reposted by Daniel Donner
Erwan Rivault @erwanrivault.com · 10/09/2026
New data released today by Copernicus shows western Europe has just experienced its hottest summer on record, averaging 2.5°C above normal, with parts of France recording summer temperatures up to 4.5°C above average. www.bbc.co.uk/news/article...
Map of summer temperature anomalies across Europe, with parts of France more than 4°C above average. A chart below compares western Europe's summer temperatures since 1979, showing that 2026 was the hottest summer on record, exceeding the previous 2003 record by more than 0.5°C.
03926
Reposted by Daniel Donner
John Gramlich @johngramlich.bsky.social · 10/09/2026
Change in eligible voters, by race and ethnicity, since the last midterms Hispanic voters: +5.25 million (+16%) Asian voters: +2.25 million (+20%) Black voters: +1.65 million (+6%) White voters: -2.60 million (-2%) www.pewresearch.org/race-and-eth...
Chart showing how the number of White, Hispanic, Black and Asian eligible voters in the United States has changed since the 2022 midterm elections. The chart is based on a September 2026 Pew Research Center analysis of data from the U.S. Census Bureau.
46927
Reposted by Daniel Donner
Datawrapper @datawrapper.de · 10/09/2026
What did the U.S. liquor industry look like during Prohibition? Shaylee from our support team recreated a map from the 1930s that shows key areas, hotspots, and transportation routes. 🗺️ 📍 🍻 Read more about the movement and its consequences on our blog: www.datawrapper.de/blog/prohibi...
082
Reposted by Daniel Donner
Patrick De Haan @gasbuddyguy.bsky.social · 03/09/2026
BREAKING: according to GasBuddy data, the live U.S. national average price of diesel has set a new record: $5.820/gal, surpassing the previous daily $5.819/gal all-time high that occurred June 17, 2022. (9/3/26 3:25pm ET)
671128391
Reposted by Daniel Donner
Kathleen Weldon @kathleenweldon.bsky.social · 03/09/2026
Just loving these 1939 People’s Research reports. Imagine making this sort of map manually!
POPULAR VOTE FOR PRESIDENT - 1936
Showing States as they would appear if their area were proportional to the popular vote cast in 1936
Total popular vote cast - 45,646,817
2297
Reposted by Daniel Donner
Mike Konczal @mtkonczal.bsky.social · 03/09/2026
BLS this morning, with revised 2Q data: "The labor share, which is the percentage of output that accrues to workers in the form of compensation, was 52.8 percent in the second quarter of 2026, the lowest level in the series, which begins in the first quarter of 1947."
571968817
Reposted by Daniel Donner
Daniel Moser @dmoser.bsky.social · 03/09/2026
Pollution levels in London after 10 years of advancing sustainable transport.
Map showing Lower Pollution levels in London after 10 years of advancing sustainable transport.
164115653176
Reposted by Daniel Donner
G Elliott Morris @gelliottmorris.com · 02/09/2026
This (from Tom Wood) suggests more than just the typical thermostatic backlash is happening right now. In sixteen months, Trump and Republicans have turned the GOP’s largest party ID advantage this century into a tie for its biggest deficit
301111320
Reposted by Daniel Donner
Steve Vladeck @stevevladeck.bsky.social · 31/08/2026
The Trump administration has filed 36 emergency applications since last February, which have generated 31 conclusive rulings. In those 31 rulings, the Court has voted *for* Trump in whole or in part 27 times (87.1%), and against him four times (12.9%). Here's a chart covering all of these rulings:
A (messy) Excel spreadsheet tracking all of the Trump administration's emergency applications, when they were filed, when they were decided, what kind of ruling they produced, and how each justice voted.
901865914
Reposted by Daniel Donner
JLRay @jlray.bsky.social · 31/08/2026
The latest from YouGov (n ~ 17.6k): Yes, everyone hates the idea of renaming Lake Ontario. Trump barely breaks 40 percent of *Republicans* and Independents barely break into the *single digits* yougov.com/en-us/daily-...
30582112
Reposted by Daniel Donner
Andy Woodruff @awoodruff.bsky.social · 31/08/2026
'tis the season* in Boston! Mind your vehicle height on Storrow Drive/Soldiers Field Road and Memorial Drive. Here's my map of some popular locations to sardine-tin the roof of your truck. (*'tis not the season. There is no season. The whole thing about students being to blame is a myth!)
A map of "Storrowing" crashes where over-height vehicles strike overpasses or signs on Storrow Drive, Soldiers Field Road, and Memorial Drive in Boston and Cambridge, Massachusetts. Each overpass and sign has dots indicating the number of crashes at that location, and there is also a timeline showing crashes by date, which are spread throughout the year, with no particular concentration around university move-in dates.
1199
Reposted by Daniel Donner
Ryan J Hollister @phaneritic.bsky.social · 28/08/2026
This is a very excellent explainer of the scientific reconstruction of the Nepal debris flow. Lots of interactive data and visuals in the report. 23 minutes between the glacial collapse/landslide before it reached the border station.⚒️
23922
Reposted by Daniel Donner
The Siècle history podcast @thesiecle.com · 28/08/2026
This is a lovely little town in western France, capital of the Vendée department. It's called... well, in the 19th Century, the name of this little town was a contentious issue. See, succeeding governments kept renaming it in their own honor. 1/
Aerial photo of the Place Napoléon in La Roche-sur-Yon, France.
1235
Reposted by Daniel Donner
Nahel Belgherze @wxnb.bsky.social · 27/08/2026
An incredibly well-timed Landsat 9 pass captured the effects of yesterday’s catastrophic glacier collapse near the Nepal–Tibet border. The event was so massive that it was detected by seismometers around the world.
211121560
Reposted by Daniel Donner
John Carl Baker @johncarlbaker.bsky.social · 27/08/2026
This is a machine to ethnically cleanse the country - and anyone who pretends otherwise is kidding themselves
3325311150
Reposted by Daniel Donner
Drew Engelhardt @amengel.bsky.social · 25/08/2026
How much did 2024 reflect a sustained right-ward shift in the outlooks of people of color? Not much, according to our work led by Emily Ortiz. During the election, hierarchy-sustaining orientations like social dominance became more aligned with partisanship, but this disappeared by June 2025.
12410
Reposted by Daniel Donner
Bastian Herre @bastianherre.bsky.social · 24/08/2026
New article by me, @eortizospina.bsky.social, and @lcsrg.me! How elections spread, voting rights expanded, and political competition developed over the last 200 years — and billions of people won more of a say in the important decisions that affect their lives. ourworldindata.org/the-rise-of-...
ourworldindata.org
The rise of electoral democracy
How elections spread, voting rights expanded, and political competition developed around the world over the last two centuries.
065
Reposted by Daniel Donner
John Gramlich @johngramlich.bsky.social · 20/08/2026
NEW: How much of the internet is written with AI? The overall @pewresearch.org estimate is about 10%. Of course, the internet long predates AI. If you look only at pages published in the era of popular AI chatbots, the figure rises to 35%.
pewresearch.org
How Much of the Internet Is Written With AI?
In a random sample of 10,000 webpages collected in July 2026, one-in-ten show signs of being written or substantially edited by AI.
23423
Reposted by Daniel Donner
The Downballot @the-downballot.com · 19/08/2026
Capped off by a massive flip in deep-red western PA, Democrats wrapped up the 2025-26 special election season overperforming by an average of 13 points. @donnermaps.bsky.social recaps the cycle and explains why it means Dems are in a good position to win back the House.
the-downballot.com
100+ specials since Trump’s return show Democrats in good position to reclaim the House
Democrats just closed out a formidable special election season with an astonishing flip
313636
Reposted by Daniel Donner
eric gonzalez juenke @egojunk.bsky.social · 19/08/2026
AI effects on students all in one set of figures. Makes homework super easy and fast. Make brane not think gud.
55219
Reposted by Daniel Donner
Zach @zacharyammerman.com · 18/08/2026
Indiana’s Grand Kankakee Marsh — once one of the largest wetlands on the continent, rivalling the Everglades. It was drained starting in the 1850s and was basically entirely lost to agriculture by 1920.
092
Reposted by Daniel Donner
Carl Quintanilla @carlquintanilla.bsky.social · 18/08/2026
“.. Import prices for capital goods rose by 6.55% y/y in July ... the largest increase in the history of the monthly data going back to 1990.” - Schwab
25522217
Reposted by Daniel Donner
Carl Quintanilla @carlquintanilla.bsky.social · 17/08/2026
* Why Big Tech’s AI Spending Is $3 Trillion Higher Than It Seems @wsj.com www.wsj.com/tech/ai/why-...
18366123
Reposted by Daniel Donner
kim yi dionne (she/her) @dadakim.bsky.social · 15/08/2026
ICYMI earlier this week, check out this very cool reporting from the road connecting Lagos and Abidjan by @npr.org. You might think it's about a road, but it's really about democracy and development: apps.npr.org/west-africa-...
apps.npr.org
In West Africa, one road could change a continent — and the world
A 600-mile journey along the shores of Nigeria, Benin, Togo, Ghana and Ivory Coast reveals one of the world's most consequential transformations.
063
Reposted by Daniel Donner
RJ Andrews @infowetrust.com · 15/08/2026
Comes with a nifty companion foldout.
1131
Reposted by Daniel Donner
G Elliott Morris @gelliottmorris.com · 12/08/2026
So what the hell is going on with primary polling?? www.gelliottmorris.com/p/2026-08-12...
gelliottmorris.com
Primary election polls miss by 13 points on average
And they are off by 20+ points about 10% of the time
1113236