MIT Election Lab
LightNews LightNews
banner
mitelectionlab.bsky.social
MIT Election Lab
@mitelectionlab.bsky.social
8.8K followers 58 following 330 posts
By applying scientific principles to how elections are studied and administered, MEDSL aims to improve the democratic experience for all U.S. voters.
Posts Replies Media Videos
mitelectionlab.bsky.social
We've just added another four states to our 2024 precinct-level dataset; if you've been waiting for AR, WA, WI, or UT, the wait is over! Plus, ICYMI: last week we added 7 additional states. Find them all on our GitHub: buff.ly/Rk069z8
GitHub - MEDSL/2024-elections-official: Repository for the results of the 2024 U.S. general election, mostly at the precinct level
Repository for the results of the 2024 U.S. general election, mostly at the precinct level - MEDSL/2024-elections-official
github.com
November 7, 2025 at 8:45 PM
mitelectionlab.bsky.social
Voter registration lists require constant maintenance. To keep them accurate, election officials rely on a number of data sources, but it gets particularly tricky across state lines. We looked at a few ways states have been meeting this challenge by sharing data with each other: buff.ly/u6kG7il
Interstate voter registration data matching | MIT Election Lab
Aside from the sheer volume of major life events affecting voter registrations, the challenge is amplified by the simple fact that individuals do not provide updates to their local election offices…
electionlab.mit.edu
October 30, 2025 at 7:00 PM
mitelectionlab.bsky.social
Data geeks! We've just added a ton of new states to our 2024 precinct-level dataset. Check out the new states or catch up on our GitHub:
GitHub - MEDSL/2024-elections-official: Repository for the results of the 2024 U.S. general election, mostly at the precinct level
Repository for the results of the 2024 U.S. general election, mostly at the precinct level - MEDSL/2024-elections-official
buff.ly
October 28, 2025 at 7:00 PM
Reposted by MIT Election Lab
caltechlcssp.bsky.social
REMINDAR: 🟠TODAY🟠 Wednesday, 10/1 at 11am Pacific. Register NOW!

#ElectionScienceOfficeHours

@rmichaelalvarez.bsky.social of @caltech.edu / @caltechlcssp.bsky.social & @benadida.com of @voting.works #CaltechElectionIntegrity
caltechlcssp.bsky.social LCSSP at Caltech @caltechlcssp.bsky.social · Sep 26
Join us on Oct 1 at 11 am Pacific for the next segment of the #ElectionScienceOfficeHours webinar & podcast, part of the #CaltechElectionIntegrity project. Host @rmichaelalvarez.bsky.social welcomes @voting.works Exec Director @benadida.com to talk all things #ElectionTechnology. @caltech.edu
October 1, 2025 at 2:30 PM
mitelectionlab.bsky.social
Election geeks, if you haven't heard, the annual ESRA conference is looking for hosts for the 2026 and 2027 conferences! More info available on their site; a great chance to show off your center &/or state:
Call for Proposals to Host
Contact
buff.ly
September 4, 2025 at 4:16 PM
Reposted by MIT Election Lab
lawanddemocracy.bsky.social
New episode: Our panel of election law experts unpacks the
@mitelectionlab.bsky.social
2024 SPAE and the growing conversation around mid-decade redistricting.

Watch now: youtube.com/watch?v=8iQ3...

#ElectionLaw #SPAE2024 #Redistricting
How are elections being conducted in America today? 2024 SPAE report and mid-decade redistricting
YouTube video by Law & Democracy
youtube.com
July 30, 2025 at 2:10 PM
mitelectionlab.bsky.social
If you've been following our precinct-level data closely, you might have noticed some updates last week! We've now added Hawaii, New Mexico, and Kansas to the 2024 dataset. Check out all of our available states on our GitHub: buff.ly/k6S0zTU
A hex map of the United States, titled "Progress of 2024 precinct data." Most states are still colored grey, indicating that our team hasn't yet cleaned and posted their precinct-level election results. 17 states are now bright pink, indicating that we HAVE collected, cleaned, and posted their data! Pink states are: MT, MN, SD, NH, IL, KY, TN, VA, DE, NC, SC, DC, FL, NM, OK, KS, and HI.
July 30, 2025 at 6:30 PM
mitelectionlab.bsky.social
🚨Last chance!🚨 Our webinar all about the 2024 Survey of the Performance of American Election is happening TODAY, 7/28, at 1pm ET! Don't miss out; register to join us now: buff.ly/8G8ET5G
July 29, 2025 at 2:15 PM
mitelectionlab.bsky.social
Election friends, have you signed up for our webinar tomorrow? Join our director from 1-2pm ET tomorrow, July 29, as he leads a tour through the 2024 SPAE data & what it shows us about voters' experiences. Register today:
Survey of the Performance of American Elections | MIT Election Lab
The Survey of the Performance of American Elections (SPAE) is the only public opinion project in the country that is dedicated explicitly to understanding how voters themselves experience the…
buff.ly
July 28, 2025 at 7:45 PM
Reposted by MIT Election Lab
electionline.bsky.social
In the newsletter this week, "How We Voted 2024", the Survey of the Performance of American Elections from @mitelectionlab.bsky.social . That, plus so much more election news and information: electionline.org/electionline...
electionline Weekly - electionline
electionline.org
July 24, 2025 at 4:03 PM
mitelectionlab.bsky.social
Have you registered for our webinar on Tuesday, 7/29 yet? If not, block off your calendar for 2pm ET and join our director for a deep dive into how Americans voted in 2024, and how those voters experienced the 2024 election process. Don't miss out; sign up today! buff.ly/sfETWgb
July 25, 2025 at 6:13 PM
mitelectionlab.bsky.social
ICYMI: Earlier this week, we released the 2024 Survey of the Performance of American Elections. Even better: we're hosting a webinar next Tuesday, 7/29 at 2pm ET all about it! Learn more and register today:
Survey of the Performance of American Elections | MIT Election Lab
The Survey of the Performance of American Elections (SPAE) is the only public opinion project in the country that is dedicated explicitly to understanding how voters themselves experience the…
buff.ly
July 23, 2025 at 2:45 PM
mitelectionlab.bsky.social
How did voters experience the election process in 2024? Our latest report details our findings from the 2024 Survey of the Performance of American Elections; you can find it (and the data behind it!) on our website now: buff.ly/40I25IF
July 22, 2025 at 2:27 PM
mitelectionlab.bsky.social
Looking to learn more about our newest report + data from the 2024 Survey of the Performance of American Elections? Join our webinar on July 29 at 1pm ET to hear directly from our director, Charles Stewart. Register today: buff.ly/vE4J11N
Welcome! You are invited to join a webinar: How We Voted in 2024: A Deep Dive. After registering, you will receive a confirmation email about joining the webinar.
Join the MIT Election Lab's founding director, Charles Stewart, for a detailed tour through the SPAE and the 2024 data.
buff.ly
July 21, 2025 at 7:18 PM
mitelectionlab.bsky.social
Good morning election friends! We've just launched the 2024 report + data from the Survey of the Performance of American Elections, which examines voter experiences from the perspective of voters themselves. Find it here: buff.ly/F3OWNkP
July 21, 2025 at 4:32 PM
mitelectionlab.bsky.social
Good morning, election data nerds! Here's a Monday morning present for you: we've finished updating our county-level presidential election results dataset to include 2024. The full dataset (covering 2000-2024) is now available on our Dataverse: buff.ly/eUGYc1h
July 14, 2025 at 2:15 PM
mitelectionlab.bsky.social
Don't miss out on today's EAC Election Data Summit! Tune into the panels and hear from election officials, academics, and others as they discuss new data and innovative research on election administration: buff.ly/eNqkpQb
2025 EAC Data Summit: Election Administration by the Numbers
www.youtube.com
July 9, 2025 at 1:45 PM
mitelectionlab.bsky.social
Attention election data geeks! If you missed it earlier this week, we're here to remind you that the U.S. EAC has released the 2024 EAVS report. Dive into the data and get your weekend reading material here: buff.ly/udX7kHb
July 4, 2025 at 2:24 PM
mitelectionlab.bsky.social
Hot off the presses! Our team's just published a paper examining the accuracy of vote counting in 2020, using a nation-scale dataset painstakingly compiled from postelection audits. tl;dr: Americans' votes were counted correctly in 2020. Full details:
Audits of the 2020 American election show an accurate vote count
This study quantifies the accuracy of vote counting in a collection of highly contested and consequential electoral contests.
buff.ly
May 13, 2025 at 5:00 PM
mitelectionlab.bsky.social
Another day, another state added to our 2024 precinct-level election dataset! We've just added Kentucky to the dataset; too late for the Derby, but hopefully right on time for you to use in your analysis & research! Find all of the data here: buff.ly/2l4Oh0i
A hex map of the United States. Most states are greyed out, but now 12 states are hot pink, indicating their data have been collected, cleaned, and published by our team. States available are now: DC, DE, NC, SC, FL, TN, KY, IL, MN, SD, OK, and MT.
May 7, 2025 at 3:01 PM
mitelectionlab.bsky.social
Eagle-eyed followers might have noticed that our map of precinct data has a few updates! We've now added Florida and South Carolina precinct data to our repository. Check them out, and stay tuned for a few more states that we're juuuuuuust about to finish: buff.ly/2l4Oh0i
A hex map of the United States. Most states are greyed out, but 11 states are now hot pink, signifying that our team has collected, cleaned, and posted their precinct-level election data! Available states are: DC, DE, NC, SC, FL, TN, IL, OK, MN, SD, and MT.
May 6, 2025 at 6:00 PM
mitelectionlab.bsky.social
Today we have *two* graphs of election administration data to update you on Wisconsin's spring election. 1st: our usual absentee visual, updated through today. 2nd: a look at counties' proportions of absentee ballots for 2025 vs. 2023. See the alt-text or visit buff.ly/envT3fn for more info!
The number of ballots applied for, sent, and returned in Wisconsin, from early March through today, in both 2025 and 2023. In 2023, 450,000 ballots had been applied for and 446,000 had been sent as of five days before the election. This year, 627,000 ballots have been applied for and 623,000 have been sent to voters. In 2023, 310,000 ballots had been returned by this point in the election calendar, compared to 475,000 this year. Whereas 122,000 in-person absentee votes were cast by this point in 2023, 242,000 have been cast this cycle. Note that data reporting for the absentee voting window began about a week earlier this year when compared to 2023. This scatterplot plots each Wisconsin county's proportion of requested absentee ballots for the 2025 Spring Election (vertical axis) against that proportion from the 2023 Spring Election. In both cases, data is from five days before Election Day. Counties along the diagonal line made up an equal proportion of the requested absentee ballots at this point in the 2023 and 2025 Spring Elections. Milwaukee and Dane Counties, which have historically been regarded as Democratic strongholds, comprise less of the total requested absentee ballots in 2025 than they did in 2023, while Waukesha and Washington Counties, which have traditionally had a Republican-leaning electorate, constitute a larger proportion this spring. Note: This is not predictive of outcomes. It may simply be a sign of Republicans being more likely to vote absentee in 2025 than in 2023.
March 27, 2025 at 8:55 PM
mitelectionlab.bsky.social
In Wisconsin's spring election this year, 408k absentee ballots have been returned so far. Visit buff.ly/QniyKcO to see more of our work tracking election administration data.
The number of ballots applied for, sent, and returned in Wisconsin, from early March through today, in both 2025 and 2023. In 2023, 429,000 ballots had been applied for and 425,000 had been sent as of six days before the election. This year, 582,000 ballots have been applied for and 578,000 have been sent to voters. In 2023, 268,000 ballots had been returned by this point in the election calendar, compared to almost 408,000 this year. Whereas 103,000 in-person absentee votes were cast by this point in 2023, 200,000 have been cast this cycle. Note that data reporting for the absentee voting window began about a week earlier this year when compared to 2023.
March 26, 2025 at 8:45 PM
Reposted by MIT Election Lab
I've just posted on Substack about who possesses passports, for reference the day after President Trump's executive order about elections.

playingwithelectiondata.substack.com/p/so-much-t...
March 26, 2025 at 4:40 PM
mitelectionlab.bsky.social
Are you following the spring Wisconsin election? So are we! Here's a reminder that we are posting regular updates as we track election administration data over at buff.ly/AA0x5RK. For more info on what we're doing, check out our blog post: buff.ly/Bdvv85q
The number of ballots applied for, sent, and returned in Wisconsin, from early March through today, in both 2025 and 2023. In 2023, 409,000 ballots had been applied for and 405,000 had been sent as of one week before the election. This year, 539,000 ballots have been applied for and 534,000 have been sent to voters. In 2023, 233,000 ballots had been returned by this point in the election calendar, compared to almost 346,000 this year. Whereas 84,000 in-person absentee votes were cast by this point in 2023, 159,000 have been cast this cycle. Note that data reporting for the absentee voting window began about a week earlier this year when compared to 2023.
March 25, 2025 at 7:00 PM