U.S. Department of Homeland Security said Lander was arrested for assaulting law enforcement and impeding a federal officer.

Video shows federal agents arresting Lander after he held on to a man that authorities were seemingly trying to detain.

Zohran Mamdani and Brad Lander — have cross endorsed each other in a last-ditch attempt to take down frontrunner Andrew Cuomo.

New York City Comptroller and Democratic mayoral candidate Brad Lander was arrested Tuesday at immigration court in Manhattan. Lander's office said he was taken into custody by U.S. Immigration and Customs Enforcement agents while observing court,