Supreme Court Blocks Trump's National Guard Deployment to Chicago

Supreme Court Upholds Lower Court Ruling

The U.S. Supreme Court on Tuesday, December 23, 2025, rejected an appeal from the Trump administration, effectively blocking President Donald Trump's planned deployment of the National Guard to Chicago, Illinois. The high court's 6-3 decision upheld a temporary restraining order previously issued by U.S. District Judge April Perry in October, which had barred the federalization and deployment of National Guard troops within Illinois.

The ruling represents a significant setback for the Trump administration's efforts to use federalized troops in Democratic-led cities. Justices Clarence Thomas, Samuel Alito, and Neil Gorsuch dissented from the majority opinion.

Administration's Rationale and Court's Rejection

The Trump administration had sought to deploy National Guard members, including 300 from Illinois, 200 from Texas, and 14 from California, to Chicago. The stated purpose was to protect federal personnel and property, enforce immigration laws, and address what the administration described as 'violent rioters' and 'lawlessness' in the city. The administration invoked Title 10, U.S.C. 12406, a federal law allowing the president to call up the National Guard in cases of invasion, rebellion, or when unable to execute laws with 'regular forces.'

However, the Supreme Court, in an unsigned order, stated that 'at this preliminary stage, the Government has failed to identify a source of authority that would allow the military to execute the laws in Illinois.' Lower courts, including Judge Perry and the 7th Circuit Court of Appeals, found no credible evidence of a 'danger of rebellion' and interpreted 'regular forces' in Title 10 to refer to the U.S. military, not civilian law enforcement. The ruling also implicitly referenced the Posse Comitatus Act, which generally prohibits the use of the military in domestic law enforcement.

Reactions from State and Federal Officials

Illinois Governor J.B. Pritzker, who had strongly opposed the deployment, hailed the Supreme Court's decision as 'a big win for Illinois and American democracy.' He emphasized that the ruling was an important step in curbing what he called the Trump administration's 'consistent abuse of power.' Chicago Mayor Brandon Johnson also praised the Supreme Court for 'rebuking President Trump's attempts to militarize and demonize our city.'

White House spokeswoman Abigail Jackson, however, maintained that the ruling would not detract from the president's agenda. She stated, 'The president promised the American people he would work tirelessly to enforce our immigration laws and protect federal personnel from violent rioters.' Illinois Attorney General Kwame Raoul, whose office presented the state's case, expressed satisfaction that the streets of Illinois would remain free of armed National Guard members as litigation continues.