Chicago Mayor-elect Brandon Johnson has threatened legal action against U.S. Immigration and Customs Enforcement (ICE) over reports that the agency has been using city-owned properties to process and detain migrants.

Johnson, who is set to take office in May, expressed his strong opposition to ICE's alleged use of these public spaces for immigration enforcement activities. His office stated that the city should not be complicit in federal immigration operations, particularly those involving the processing and potential detention of individuals.

Details emerged from reports indicating that ICE has utilized city-owned lots, including one on the city's West Side, to stage operations involving migrants. These reports have fueled concerns among city officials and residents about the transparency and legality of such federal actions on local property.

The threat of a lawsuit signals a potential clash between the incoming city administration and the federal agency over jurisdiction and the use of municipal resources. Johnson's team has emphasized a commitment to a more humane and coordinated approach to managing the influx of migrants into the city.

This development comes as Chicago continues to grapple with a significant increase in migrant arrivals, straining city resources and services. The city has been actively seeking solutions for housing, food, and support for thousands of asylum seekers who have arrived in recent months, many of whom were bused from the southern border.

Johnson's stance aligns with a broader debate occurring in cities across the country that are receiving large numbers of migrants. Local officials often find themselves caught between federal immigration policies and the immediate needs of their communities.

The mayor-elect's office has not yet specified the exact legal grounds for a potential lawsuit but has indicated that the use of city property for federal immigration enforcement without proper consultation or agreement is unacceptable. They are also seeking clarity on the nature and extent of ICE's operations on these sites.

ICE has not issued a public statement regarding the specific allegations or the threat of legal action from Chicago's incoming mayor. The agency typically operates under federal law concerning immigration enforcement, but its use of local government property often requires coordination or consent.