Brad Lander, who is the New York City Comptroller and a Democratic candidate for mayor, was arrested by federal agents at an immigration court. He was arrested because he held onto someone the authorities wanted to arrest. Lander was at the federal building in Manhattan, watching immigration court hearings. When agents tried to arrest a man leaving a courtroom, Lander linked arms with him and asked to see a judge's official permission. The agents eventually separated them and arrested Lander. After he was released, Lander said he was just trying to protest Trump's immigration policies in a peaceful way. This arrest happened while there has been a rise in arrests outside immigration courtrooms across the country. Other Democratic candidates and politicians have criticized Lander's arrest.