美国总统特朗普：必须加大力度在洛杉矶、芝加哥和纽约等美国最大城市拘留和驱逐非法移民。

Core Viewpoint - President Trump emphasizes the need to intensify efforts to detain and deport illegal immigrants in major U.S. cities such as Los Angeles, Chicago, and New York [1] Group 1 - The focus is on increasing enforcement actions against illegal immigration in key urban areas [1] - The statement reflects a broader immigration policy agenda aimed at stricter control and management of immigration [1]