Nine research sessions were removed from the agenda of the National Research Conference on Early Childhood, less than a week before the event, after an unprecedented intervention by the U.S. Department of Health and Human Services, according to researchers. The cancellations affected nearly a fifth of the 48 sessions. Presenters reported being notified on June 16 that selected sessions were removed during HHS’s final clearance process, with minimal explanation beyond requests for revisions. The revised agenda replaced the earlier one on June 17, and researchers described the last-minute withdrawal as unusual given that presentations had already cleared a peer-review selection process. Universities and research partners—Yale University, the University of Alabama, Child Trends, the Urban Institute, and others—are now dealing with reputational and dissemination impacts, while early childhood agencies face operational uncertainty around the policy evidence being shared to the field.