Arrests of legal U.S. residents and even citizens in connection with immigration proceedings have increased sharply during the Trump administration, reflecting substantial changes in enforcement priorities, the legal environment, and agency behavior.

The available data, significant cases, and points of contrast with previous administrations are detailed below.

Changes Under the Trump Administration

Statistics on Arrests and Detention

Significant Cases

Comparison with Prior Administrations

Summary Table: Enforcement Under Recent Presidents

Aspect Obama (2009-2016) Trump (2017-20, 2025-) Biden (2021-2024)
Enforcement Targeting Serious crime/recency All removable persons Serious crime/public safety
Discretion for Legal Residents Frequent Rare or none Moderate
Routine Check-in Arrests Less common Vastly increased Reduced
Legal Residents/Citizens Detained Few documented cases Documented, hundreds Rare
Detention Population (ICE) 30,000-45,000 Record: 66,000+ Around 20,000-35,000

The Trump administration’s departure from previous norms led to an unprecedented rise in immigration-related arrests of legal residents and wrongful detentions of U.S. citizens, driven by policy, statutory changes, and greatly increased enforcement resources. [1][3][11]