I can’t begin to describe the crowd here in Folsom, CA to see Bernie Sanders and Alexandria Ocasio-Cortez. We thought 20,000 might show up. At least 30,000 people are here and there are still MANY in line. Never seen anything like this.

Columbia's Philosophy Department, where Mohsen Mahdawi is a student, has posted a statement about his detention on their website:

'The Department of History at the University of Texas at Tyler...tenure-track Assistant Professor position in World History, with specialization in the area of East Asia, Southeast Asia, the Islamic World, Sub-Saharan Africa, or Oceania.' jobs.chronicle.com/job/37819157/a…

📷 If you're working in an archive this summer, you could win a free The Renaissance Society of America year-long membership! ow.ly/8o9R50VBIUE #RenTwitter #earlymodern #twitterstorians

Cutting Medicaid is nothing but a cruel act of greed. These stories make it abundantly clear: without Medicaid, people’s lives and ability to live with dignity are at risk. #HandsOffMedicaid protectourcare.org/faces-of-medic…

Learn more about the historical evolution of human-earth models by following a network of U.S. postwar technoscientific elites and their allies across the capitalist bloc in the 1970s. RSVP: tinyurl.com/kktaatbp

🔥 TODAY! Apr 18 5-9pm ET, join us for Herança Ancestral, a celebration of Capoeira, Samba, and the deep connections between ancestral arts, community, and knowledge-sharing. Hosted by Columbia Climate School professor Kristina Douglass. Learn more/RSVP: climate.columbia.edu/events/heranca…

In 2023, Biden issued an Executive Order declaring April as Care Worker Recognition Month. And while the Trump administration hasn’t acknowledged it, we won’t wait for any politician to tell us what we already know: care work deserves our unwavering support all year round.

🏆 Congratulations to PhD student Garima Raheja of Columbia University & LDEO, named one of world's top 30 young scientists working on climate solutions with 2025 Inflection Award for scientific excellence, ambition, potential to drive real-world impact! ➡️inflectionaward.com

A photo of Boston's old North Church last night.

Fixed it: --> last year, the U.S. sold more educational services to the rest of the world than it sold in natural gas and coal **combined** --> every $1 of research funded by NIH generates $2.56 in economic activity --> more than 1.1M foreign students come to the U.S. each year

Breaking: a judge in GA ordered that the fed'l gov't CANNOT pull the visas of foreign students. The order applies ONLY to students who are part of the lawsuit. If you want to join the lawsuit, email [email protected] & [email protected] youtu.be/FS6B8CM8uf4

Today at 6:30PM! RSVP: tinyurl.com/kktaatbp

The JimOwles Dem Club has paved the way for millions of LGTBQ New Yorkers to live freely in our City by fighting for LGBTQ rights, which are evermore threatened by the Trump Administration. Thank you for the trust and faith you've put in me with this endorsement.

We are thrilled to announce our latest round of Course Development awardees! The three awarded grants will support the development of new science and society classes open to undergraduate students. Learn more: tinyurl.com/mh39wa38

From my #Commencement speech Wesleyan University "Practicing education is like practicing democracy – both are collaborative, experimental paths of improvement, both depend on inclusion rather segregation. Both are now very much endangered." #FreeSpeech #HigherEducation

"The bill has $1.1 trillion in tax cuts for people who make more than $500k a year..it has $1.1 trillion in cuts to Medicaid &food stamps. ..a straight transfer from people who cannot afford food and medical care to people who can afford to fly 1st class" nytimes.com/2025/05/23/opi…

.Nicholas Kristof I fear the upshot is increased risk of war, of nuclear proliferation, of pandemics. Instead of protecting America, Trump may have made our world more dangerous, perhaps for decades to come —and that will not be easily reversed." New York Times Opinion nytimes.com/2025/06/07/opi…

Welcome to Next Stop City Hall, where I answer as many of your questions as I can before the next train comes. 🚂

The Special Issue on Historical Pharmacopeias is out with History of Pharmacy and Pharmaceuticals. Thanks to Paula de Vos for shepherding this project from inception to completion. As an overview, check out the "Visual Pharmacy" essay (co authored with Dan Smail) which lays out