美联邦执法人员在芝加哥巡逻 市长：他们毫无缘由耀武扬威

Group 1 - The U.S. federal law enforcement has escalated its presence in Chicago, with armed agents patrolling popular tourist and shopping areas, causing concern among citizens and visitors [2][3] - Chicago's Mayor Brandon Johnson condemned the federal presence, stating that citizens were frightened by the armed agents seemingly acting without reason [2] - President Trump previously ordered the deployment of National Guard troops to various cities, including Los Angeles and Washington D.C., to address protests related to immigration enforcement [2][4] Group 2 - Following the murder of conservative activist Charlie Kirk, Trump intensified his campaign against what he labels "radical left," claiming they are the source of political violence in the U.S. [4] - The deployment of federal troops to Portland, Oregon, has faced opposition from local officials, who argue that the city's security situation is stable and that federal intervention is unnecessary [4]