DHS Statistics Chief Resigns, Citing ‘War on Facts’ Amid Data Stagnation
The executive director’s resignation follows months of unupdated agency data and aligns with broader concerns over transparency within the Department of Homeland Security.
Marc Rosenblum, executive director of the Office of Homeland Security Statistics at the US Department of Homeland Security (DHS), has resigned, citing the Trump administration’s “war on immigrants” and “war on facts.” Rosenblum, who served in both the first Trump and Biden administrations, described the current work environment as hostile and criticized the administration for silencing facts and ignoring transparency. His departure follows a period of stagnation in DHS statistical data, with the Office of Homeland Security Statistics website last updated on 11 February 2025.
Rosenblum’s role involved consolidating data across the department’s 22 component agencies to provide granular insights into operations ranging from cybersecurity intrusions to deportation numbers. A former colleague noted that Rosenblum’s mandate was to aggregate siloed data to give headquarters a clear picture of activities, such as Coast Guard interdictions and border crossings. Despite his promise in 2023 to release data more quickly and with greater scope, the agency’s public data has not been updated since early February 2025.
Information obtained by analysts through Freedom of Information Act requests since that date has been described as “spotty and unreliable.” David Bier, the Cato Institute’s director of immigration studies, previously noted the lack of accountability and public understanding regarding agency activities without curated press releases. Rosenblum highlighted the difficulties faced by his team in his resignation statement, describing them as smart, mission-focused experts working in a challenging environment.
The Office of Homeland Security Statistics, which peaked at 45 staff during the Biden years, has shrunk under the current administration. Rosenblum is one of a number of DHS officials who have left since the second Trump inauguration, including acting ICE director Todd Lyons and multiple acting FEMA chiefs. However, most of those departures have not been accompanied by public criticism, distinguishing Rosenblum’s exit as one of the few high-profile resignations openly challenging the administration’s direction.
A DHS spokesperson declined to comment on the resignation, stating that personal opinions do not constitute factual statements. Rosenblum, a long-time immigration policy specialist, had previously warned in 2015 that mass deportation could reduce the US workforce by 6.4 percent and cut real GDP by $1.6 trillion. His departure underscores the tension between the administration’s immigration enforcement priorities and the agency’s traditional commitment to data transparency.
