DHS Official Resigns, Citing 'War on Immigrants'

Marc Rosenblum, who served as executive director of the Office of Homeland Security Statistics (OHSS) and deputy assistant secretary, announced his resignation via a LinkedIn post over the weekend. He stated he was thrilled to end his relationship with the current administration, citing 'the war on immigrants, the war on feds, and the war on facts,' as well as mentioning 'the crazy war in Iran and the brazen corruption.'

Rosenblum has worked at DHS since the first Trump administration, later under Biden. He initially ran the immigration statistics office and then oversaw statistics for the entire department, collecting data on cybersecurity, trafficking investigations, deportations, and more. His office peaked at 45 staff during the Biden years and had since shrunk.

DHS data on ICE detentions, Border Patrol encounters, and repatriations has not been updated since February 11, 2025, just weeks into Trump's second term. Analysts say information obtained from DHS since then has been spotty and unreliable. In his LinkedIn post, Rosenblum praised his colleagues as outstanding career federal civil servants who produce high quality results in a challenging and often hostile work environment.

Rosenblum is one of the few DHS officials to publicly criticize the administration. In 2015, he warned a Senate committee that mass deportation could be risky, expensive, and cruel, and that stricter enforcement inevitably damages established families and communities. He also noted that deporting all 11 million unauthorized immigrants would cut the US workforce by 6.4% and reduce GDP by $1.6 trillion.