New Tracker Documents 28 Deleted and 338 Modified Federal Datasets Across 60-Plus Agencies

A new tracker from dataindex.us, co-founded by former Biden chief data scientist Denice Ross, documents 28 deleted and 338 modified federal datasets across more than 60 agencies over 18 months. Health data is hardest hit at roughly 40% of affected collections. The changes span environment, labor, and law enforcement domains, reflecting what observers call a "targeted, surgical removal" aligned with Trump administration priorities.