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]

Core Viewpoint - The U.S. President Trump announced the deployment of military forces to Portland, Oregon, to address what he termed "domestic terrorists" and protect federal facilities from attacks by the "Antifa movement" [1] Group 1: Government Actions - Trump directed the Secretary of Defense to send troops to Portland at the request of the Secretary of Homeland Security [1] - An executive order was signed by Trump on September 22, designating the "Antifa movement" as a domestic terrorist organization [1] - The White House described the Antifa movement as a "radical left-wing terrorist organization" that incites violence to overthrow the government [1] Group 2: Political Reactions - Portland's Mayor, Keith Wilson, stated that he and other city mayors did not request federal intervention and do not need it [1] - Trump has previously sent troops to Los Angeles and Washington, D.C., facing strong opposition [1] - The Attorney General of Washington D.C. has filed a lawsuit against the Trump administration regarding the deployment of troops in the capital [1] Group 3: Context and Background - Trump's intensified rhetoric against "radical left" groups follows the killing of conservative activist Charlie Kirk, whom he blamed for political violence in the U.S. [1] - Trump has threatened to send troops to other Democrat-led cities like Chicago to "combat crime" [1]