The California Courier likes to run Facebook ads against Democrats. Its funding, and most of its writers, are a mystery.

Could this mysterious California news site influence the 2026 election? The California Courier uses the name of an established paper and doesn’t disclose apparent Republican ties. Critics call it ...

The Dating Apps Reporting Project produced this story in partnership with the Pulitzer Center’s AI Accountability Network and The Markup, now a part of CalMatters, and copublished with The Guardian ...

Trapped in a dialysis chair for four hours at a time, he’d watch his blood be removed, cleaned, and recirculated back into his body. After three years of this routine he started to wonder: Will I ever ...

Hello World is a weekly newsletter—delivered every Saturday morning—that goes deep into our original reporting and the questions we put to big thinkers in the field. Browse the archive here. I’m Alex, ...

The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that ...

The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that ...

The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that ...

The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that ...

The Markup, now a part of CalMatters, uses investigative reporting, data analysis, and software engineering to challenge technology to serve the public good. Sign up for Klaxon, a newsletter that ...

Technology companies are locked in a frenzied arms race to release ever-more powerful artificial intelligence tools. To demonstrate that power, firms subject the tools to question-and-answer tests ...