Brad Lander, who wants to be mayor of New York City, was arrested at a court for immigrants. He was with a person the police wanted to arrest. Lander held the person's arm because he wanted to see a paper from a judge. The police separated them and arrested Lander. After he was let go, Lander said he was trying to show he didn't like the government's rules about people coming into the country, but he didn't use violence. This arrest happened when more people are being arrested outside these courts. Other politicians from his party are not happy about Lander's arrest.