Marc Rosenblum, the former executive director of the Department of Homeland Security’s (DHS) Office of Homeland Security Statistics, announced on Saturday, July 26th, 2026, that he was leaving his position. Rosenblum, who had served at DHS since 2016, shared his departure in a LinkedIn post, expressing that he was “thrilled to end my relationship with the current administration.”

In his statement, Rosenblum said, “It’s been an honor to serve the public by improving DHS data quality and supporting evidence-based policymaking,” and added that he was “sad to suspend my career in public service and leave my amazing team.” However, he also criticized the administration, writing, “Between the war on immigrants, the war on feds, and the war on facts (not to mention the crazy war in Iran and the brazen misconduct), I just need a change.”

The Office of Homeland Security Statistics is tasked with publishing authoritative immigration and homeland security statistics covering areas such as immigration, emergency management, cybersecurity, and infrastructure protection. DHS declined to clarify whether Rosenblum resigned or was dismissed.

Rosenblum indicated that his future work will align with his personal goals and values, which he believes are shared by most Americans.

Mike Howell, president of the Oversight Project, commented on Rosenblum’s departure as “strange timing,” noting that the Oversight Project had recently filed a lawsuit demanding that DHS release its “ACTUAL deportation data.” Howell remarked, “I am not sure what to make of the fact that this opinionated fellow was in charge of DHS stats and just bounced (or was bounced). I would like to see those numbers leave the government as well.”