Video taken by reporters at the courthouse show Mr. Lander standing by a migrant man in a crowded hallway when several men who appear to be law enforcement officers, some wearing masks, walk up to the...

New York City Comptroller and mayoral candidate Brad Lander was arrested at an immigration court on Tuesday, the latest U.S. politician to be swept up in President Donald Trump's immigration raids.

A spokesperson for the U.S. Attorney’s Office said prosecutors are still investigating the incident involving Lander and will prosecute any violations of federal law, including assaults on law enforc...