Chicago groups sue to bar federal agents from protest duties Protesters gather on Federal Plaza Thursday, July 23, 2020, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)
Aislinn Pulley, a founding member of Black Lives Matter in Chicago, speaks at a rally on Federal Plaza Thursday, July 23, 2020, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)
Protesters gather on Federal Plaza Thursday, July 23, 2020, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)
A protester attending a rally on Federal Plaza Thursday, July 23, 2020, raises her hand against a backdrop of the Dirksen Federal Building, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)
Aislinn Pulley, a founding member of Black Lives Matter in Chicago, speaks at a rally on Federal Plaza Thursday, July 23, 2020, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)
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Protesters gather on Federal Plaza Thursday, July 23, 2020, after a collection of Chicago activists groups announced they are filing a federal lawsuit against the Chicago Police Department, Fraternal Order of Police, and the federal government, in Chicago. The lawsuit also asks a judge to prevent agents in Chicago from making arrests or detaining people without probable cause and to require agents to identify themselves and their agency before taking either action and explain why someone is being arrested. (AP Photo/Charles Rex Arbogast)