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John D. Harden

@jdharden.bsky.social
627 followers 1.4K following 65 posts

Investigative data reporter | UC Berkeley @berkeleyjournalism.bsky.social lecturer alum | R & SQL devotee, py-curious

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John D. Harden @jdharden.bsky.social · 25/09/2026
A Quiet ICE Surge That Unfolded ‘Everywhere All at Once’ This Summer: A review of dozens of incidents caught on camera sheds new light on a largely invisible crackdown. www.nytimes.com/2026/09/25/u...
nytimes.com
A Quiet ICE Surge That Unfolded ‘Everywhere All at Once’ This Summer
A review of dozens of incidents caught on camera sheds new light on a largely invisible crackdown.
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Washington Post Data Team @wpdatateam.bsky.social · 17/08/2026
Read the full story, and look up where your county stands, here: www.washingtonpost.com/health/inter...
washingtonpost.com
U.S. vaccination rates are plunging. Look up where your school stands.
Take a look to see what the kindergarten measles vaccination rates are in your area.
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John D. Harden @jdharden.bsky.social · 17/08/2026
Using LLMs in Data Journalism Can Be Trustworthy, If These Five Elements Are In Your Methodology. A great read by @jeremybmerrill.com www.ire.org/2026/08/13/u...
ire.org
Using LLMs in Data Journalism Can Be Trustworthy, If These Five Elements Are In Your Methodology
Using LLMs in Data Journalism Can Be Trustworthy, If These Five Elements Are In Your Methodology By By Jeremy B. Merrill, The Washington Post | Published August 13, 2026 .byline { font-size: 1.7rem; c...
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Washington Post Data Team @wpdatateam.bsky.social · 17/08/2026
Last week, the Trump administration upended federal vaccine recommendations. But kindergarten classroom across the country already lack herd immunity. Vaccination rates have plunged since the pandemic. See what vaccination rates look like where you live (no paywall): wapo.st/4qjgdBj
Kindergarten classrooms in more than 70 percent of counties lack herd immunity
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Washington Post Data Team @wpdatateam.bsky.social · 12/08/2026
President Trump claims his administration "stopped crime in Washington." A Post analysis of 16,000+ arrest reports in D.C. paints a more complicated picture, finding federal partners mentioned in roughly 3 out of 10 reports. Analysis by @jdharden.bsky.social www.washingtonpost.com/dc-md-va/202...
washingtonpost.com
A year after D.C. takeover, Trump says crime has plummeted. It’s not that simple.
The Post’s analysis of thousands of arrest records found the president's remarks overstate the federal intervention’s impact.
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Meghan Hoyer @meghanhoyer.bsky.social · 11/08/2026
A year ago, Trump took over DC's police force for 30 days. Joint patrols w/ police & federal agents have continued - and now >30% of arrests in DC involve federal agents. By @jdharden.bsky.social, @conarck.bsky.social, @juanbennjr.bsky.social & Jasmine Golden: www.washingtonpost.com/dc-md-va/202...
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John D. Harden @jdharden.bsky.social · 23/07/2026
A Deep Dive into Why Crime is Falling with John Roman open.substack.com/pub/jasher/p...
open.substack.com
A Deep Dive into Why Crime is Falling with John Roman
Crime is falling fast in America, and, as the many different opinions on the podcast can attest, almost nobody can agree on why.Thanks for reading Jeff-alytics!
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John D. Harden @jdharden.bsky.social · 23/07/2026
As the cost of aging soars, families’ wealth is evaporating wapo.st/4b6IwMO
wapo.st
As the cost of aging soars, families’ wealth is evaporating
Growing old is eroding the inheritance Americans hoped to leave behind, a Washington Post analysis found. Many will have nothing to pass on.
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Washington Post Data Team @wpdatateam.bsky.social · 23/07/2026
Economists have talked about it as the greatest wealth transfer in history. But generational wealth is obliterated for many by the astronomical costs of elder care. The poorest Americans spent nearly a third of their wealth on out-of-pocket care costs. www.washingtonpost.com/business/202...
Bar chart of the share of Americans who died with no wealth left after out-of-pocket care costs in their final decade, where the share nearly doubled from about 6% in 2006-2010 to nearly 11% in 2017-2022.
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John D. Harden @jdharden.bsky.social · 23/07/2026
The death of the stick shift is almost here www.washingtonpost.com/transportati...
washingtonpost.com
The death of the stick shift is almost here
Driving a manual vehicle is a lost art. Hopes of a revival have fallen flat. With the rise of EVs and autonomous vehicles, only a few die-hards hold on.
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John D. Harden @jdharden.bsky.social · 22/07/2026
His redemption story inspired San Francisco. Inside housing for the homeless, women say his abuse went unchecked www.sfchronicle.com/bayarea/arti...
sfchronicle.com
His redemption story inspired San Francisco. Inside housing for the homeless, women say his abuse went unchecked
A vital San Francisco nonprofit allowed a case manager’s pattern of alleged misconduct to carry on for years, leaving the nonprofit’s residents vulnerable.
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John D. Harden @jdharden.bsky.social · 22/07/2026
His doctor’s prescription for his unbearable pain seemed absurd. It worked. wapo.st/45mpiiN
wapo.st
His doctor’s prescription for his unbearable pain seemed absurd. It worked.
Gregory Maassen was nearly bedridden by a burning sensation that was later diagnosed as a rare form of neuropathy. He has found relief riding his e-bike across the country.
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John D. Harden @jdharden.bsky.social · 22/07/2026
ICE officials warned of dangerous crowding. See how they kept packing people in. wapo.st/3R6bdmr
wapo.st
ICE officials warned of dangerous crowding. See how they kept packing people in.
Dozens were held for days in small rooms last year with no beds, showers or full-time medical staff, records analyzed by The Post show.
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John D. Harden @jdharden.bsky.social · 21/07/2026
Trump Administration Live Updates: Hegseth Estimates Cost of Iran War Has Reached $37.5 Billion www.nytimes.com/live/2026/07...
nytimes.com
Trump Live Updates: Hegseth Estimates Cost of Iran War Has Reached $37.5 Billion
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John D. Harden @jdharden.bsky.social · 21/07/2026
The U.S. homeownership rate may not be as high as you think www.washingtonpost.com/business/202...
washingtonpost.com
The U.S. homeownership rate may not be as high as you think
One economist has a new way of looking at the issue.
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Caitlin Gilbert @caitlingilbert.bsky.social · 17/07/2026
very very excited to be launching Wrong Number with my buds @christinezhang.bsky.social and @jdharden.bsky.social! It’s a newsletter dedicated to all of our weird data obsessions: our first posts cover Law & Order, trees, and theme park accidents wrongnumber.beehiiv.com/p/about-wron...
wrongnumber.beehiiv.com
About ‘Wrong Number’
What this newsletter is, who we are, and why we named it that.
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John D. Harden @jdharden.bsky.social · 01/04/2026
Foster Care for Mental Health Treatment: Parents Surrender Thousands of Kids Each Year In Search of Help imprintnews.org/top-stories/...
imprintnews.org
Thousands of Kids Enter Foster Care for Mental Health Care
The Imprint did a first-ever survey of all 50 states, asking how often parents voluntarily turn their kids over to the child welfare system.
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Washington Post Data Team @wpdatateam.bsky.social · 04/03/2026
Hello Bluesky! We're the Washington Post data team. We dig through government records, social media, campaign finance reports, weather maps, and any other data we can dig up, download, FOIA or create. Then, we share what we find with you. We've worked on a lot in the past year. A few highlights 🧵
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Ence Morse @ence.bsky.social · 09/02/2026
today I learned Austin has... curling teams?! (and 18 Texans in the olympics!!!) killer piece from the best sports data journalist in the biz @emilygiam.bsky.social
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John D. Harden @jdharden.bsky.social · 05/02/2026
He Was Laid Off at The Washington Post After Working There 60 Years www.nytimes.com/2026/02/05/b...
nytimes.com
He Was Laid Off at The Washington Post After Working There 60 Years
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Caitlin Gilbert @caitlingilbert.bsky.social · 04/02/2026
Amid the hundreds of colleagues we’ve lost today, I wanted to highlight the BRILLIANT data/graphics folks who any newsroom should be fighting to hire right now—threading here:
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John D. Harden @jdharden.bsky.social · 04/02/2026
gofundme.com
Donate to Washington Post 2026 layoff fund, organized by Rachel Siegel
On Wednesday, Feb. 4, 2026, The Washington Post laid off hundreds of journalists. We ar… Rachel Siegel needs your support for Washington Post 2026 layoff fund
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John D. Harden @jdharden.bsky.social · 02/02/2026
Climate change is making the Winter Olympics harder to host: Here’s what the future could look like for 93 possible Olympic host locations. wapo.st/4klzLC4
wapo.st
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John D. Harden @jdharden.bsky.social · 02/02/2026
Between the sheets: One of the most unusual — and fun — events in college sports is a high-stakes spreadsheeting competition in Las Vegas. www.washingtonpost.com/sports/inter...
washingtonpost.com
Between the sheets at the college Excel championships
One of the most unusual — and fun — events in college sports is a high-stakes spreadsheeting competition in Las Vegas.
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Louisa Loveluck @leloveluck.bsky.social · 26/01/2026
As @washingtonpost.com international & local correspondents, we have risked our lives, side by side, because we believe reporting from the ground serves the public good. To choke that engine of brave, committed colleagues would be devastating. If you value our work, tell Jeff Bezos to #SaveThePost.
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John D. Harden @jdharden.bsky.social · 14/01/2026
FBI executes search warrant at Washington Post reporter’s home wapo.st/4pFh6lw
wapo.st
FBI executes search warrant at Washington Post reporter’s home
The search came as part of an investigation into a government contractor accused of illegally retaining classified government materials.
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Caitlin Gilbert @caitlingilbert.bsky.social · 31/12/2025
We also write about how many parts of the country are flying blind in the face of missing records, lack of resources, registry/access issues and all sorts of problems that could impact rates beyond choosing not to vax. there are many caveats to the numbers we’re reporting here!!
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Caitlin Gilbert @caitlingilbert.bsky.social · 31/12/2025
EXCLUSIVE: @laurenweberhp.bsky.social & I have spent the last year collecting school+county-level vaccination data from across the US and found that only about 28% of counties now have herd immunity for kindergartners from measles—that leaves about 5.2mn kids unprotected. Gift link: wapo.st/49zDc43
wapo.st
U.S. vaccination rates are plunging. Look up where your school stands.
Take a look to see what the kindergarten measles vaccination rates are in your area.
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John D. Harden @jdharden.bsky.social · 31/12/2025
U.S. vaccination rates are plunging. Look up where your school stands. www.washingtonpost.com/health/inter...
washingtonpost.com
U.S. vaccination rates are plunging. Look up where your school stands.
Take a look to see what the kindergarten measles vaccination rates are in your area.
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John D. Harden @jdharden.bsky.social · 29/12/2025
Wolves, long feared and reviled, may actually be lifesavers www.washingtonpost.com/climate-envi...
washingtonpost.com
Wolves, long feared and reviled, may actually be lifesavers
A new line of research has revealed a surprising finding about how the presence of wolves helps keep people safe.
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John D. Harden @jdharden.bsky.social · 23/12/2025
Trump Administration Live Updates: Borrowers in Default on Student Loans Could Have Wages Garnished Starting in January
nytimes.com
Trump Administration Live Updates: Borrowers in Default on Student Loans Could Have Wages Garnished Starting in January
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John D. Harden @jdharden.bsky.social · 22/12/2025
In deadly D.C. plane crash, city lights may have played a role. See how. wapo.st/4p5LiGg
wapo.st
In deadly D.C. plane crash, city lights may have played a role. See how.
The Post examined the bright skyline around Reagan National Airport and whether it may have been a factor in the January accident, which killed 67 people.
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John D. Harden @jdharden.bsky.social · 18/12/2025
When Trump launched his crime emergency — taking over D.C. police for 30 days and deploying National Guard troops into city streets — he said he wanted to combat “out of control” crime. Here's the lasting impact of Trump’s federal surge on one D.C. neighborhood wapo.st/4s4VMIF
wapo.st
The lasting impact of Trump’s federal surge on one D.C. neighborhood
Those at the 10th Place apartments in Southeast Washington said the president’s crime strategy deepened their distrust of police and made them feel no safer.
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John D. Harden @jdharden.bsky.social · 12/12/2025
Gift link: TikTok’s mental health rabbit hole’? It’s not in your head. TikTok’s algorithm favors mental health content over many other topics, including politics, cats and Taylor Swift, according to a Washington Post analysis. wapo.st/3YsPDs0
wapo.st
TikTok’s mental health ‘rabbit hole’? It’s not in your head.
It’s not just you: Data shows the app’s algorithm makes some topics ‘stickier’ than others
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John D. Harden @jdharden.bsky.social · 11/12/2025
Billionaire Nation: Meet the Trump administration’s 12 billionaires. At a net worth of $390 billion, it’s the wealthiest White House in modern history. wapo.st/48OTPra
wapo.st
Meet the Trump administration’s 12 billionaires
At a net worth of $390 billion, it’s the wealthiest White House in modern history.
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John D. Harden @jdharden.bsky.social · 10/12/2025
In L.A., $750 a Month to Live in a Backyard Storage Unit www.nytimes.com/2025/12/09/u...
nytimes.com
In L.A., $750 a Month to Live in a Backyard Storage Unit
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John D. Harden @jdharden.bsky.social · 21/11/2025
Your morning read. How billionaires took over American politics: The concentration of wealth among the richest Americans is unlike anything in history — and so is billionaires’ influence in politics. wapo.st/48nkqMN
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Meghan Hoyer @meghanhoyer.bsky.social · 20/11/2025
The homicide rate in the US has been dropping in the past three years and is trending toward its lowest level in decades. Reporters visited five cities with major decreases to figure out why. Data analysis by @jdharden.bsky.social: www.washingtonpost.com/nation/inter...
A lookup tool with a line chart that allows users to pick a city and show the homicide rate over the past decade. The chart highlights DC's rate vs. the US rate
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John D. Harden @jdharden.bsky.social · 20/11/2025
The deadliest roads in America: The number of pedestrians killed by vehicles in the United States has surged amid neglect and lack of investment by transportation authorities. www.washingtonpost.com/business/int...
washingtonpost.com
The deadliest roads in America
The number of pedestrians killed by vehicles has increased in the U.S., with road infrastructure and inadequate safety measures among key contributing factors.
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The Washington Post @washingtonpost.com · 20/11/2025
Exclusive: The U.S. Coast Guard will no longer classify the swastika, nooses and the Confederate flag as hate symbols. The military service drafted a new policy that classifies them as “potentially divisive.”
washingtonpost.com
U.S. Coast Guard will no longer classify swastikas, nooses as hate symbols
The military service, which falls under the Department of Homeland Security, has drafted a new policy that classifies such items “potentially divisive.”
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Jennifer LaFleur @jlaf.bsky.social · 31/10/2025
A reminder of our past nuclear testing: revealnews.org/article/us-v...
revealnews.org
Atomic veterans: The legacy of watching nuclear blasts
Hundreds of thousands of American soldiers watched nuclear bomb tests during World War II and the Cold War. Some “atomic veterans” now suffer from health problems they blame on radiation exposure.
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John D. Harden @jdharden.bsky.social · 27/10/2025
The mysterious rise of cancer among young adults in the Corn Belt wapo.st/3Le1yXo
wapo.st
The mysterious rise of cancer among young adults in the Corn Belt
Communities across the Corn Belt are confronting a rise in cancers among young adults — and few clear explanations.
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Emily Giambalvo @emilygiam.bsky.social · 25/10/2025
The U.S. women's gymnastics program won just two medals at world championships this week — their fewest since 2001. What happened? Analysis of the state of the U.S. program: wapo.st/3JuJl7s
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John D. Harden @jdharden.bsky.social · 21/10/2025
Your diet’s impact on the planet depends on where you live. Look up your city. www.washingtonpost.com/climate-envi...
washingtonpost.com
Column | Your diet’s impact on the planet depends on where you live. Look up your city.
What you eat, and where you eat it, can have a big impact on how much you’re contributing to climate change, according to a study published Monday.
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John D. Harden @jdharden.bsky.social · 20/10/2025
How the Louvre Jewelry Heist Unfolded www.nytimes.com/interactive/...
nytimes.com
How the Louvre Jewelry Heist Unfolded (Gift Article)
Thieves used a truck-mounted ladder to break into the Louvre and steal items of “incalculable” value.
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John D. Harden @jdharden.bsky.social · 20/10/2025
Climate change is coming for D.C.’s trees, and the city won’t look the same wapo.st/43ijIxq
wapo.st
Climate change is coming for D.C.’s trees, and the city won’t look the same
The Post examined data that shows how the decisions being made now about what trees to plant in place of dying ones will change the city’s treescape.
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John D. Harden @jdharden.bsky.social · 20/10/2025
So, @marissajae.bsky.social and I knew D.C. was changing up its canopy, but we wanted to explore what which regions of the country would be most represented in the city’s planting strategy. The data pointed to the midwest and gulf coast. www.washingtonpost.com/dc-md-va/int...
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John D. Harden @jdharden.bsky.social · 13/10/2025
Black Unemployment Is Surging Again. This Time Is Different. www.nytimes.com/2025/10/12/b...
nytimes.com
Black Unemployment Is Surging Again. This Time Is Different.
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John D. Harden @jdharden.bsky.social · 12/10/2025
The pain from the government shutdown is about to hit the public wapo.st/3KNYyRq
wapo.st
The pain from the government shutdown is about to hit the public
Federal officials are bracing for the worst effects of the ongoing government shutdown to collide with the U.S. economy this week as missed paychecks and the absence billions of dollars of government ...
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The Washington Post @washingtonpost.com · 12/10/2025
More than 15 million people 55 or older don’t have a spouse or biological children; nearly 2 million have no family members at all. Who will be there for these solo agers as their lives draw to a close? How many of them will die alone?
washingtonpost.com
An age-old fear grows more common: ‘I’m going to die alone’
As families fracture, people are living longer and are more likely to find themselves without close relatives or friends at the end of their lives.
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