Officials in both cities have disputed the president’s characterizations, saying military intervention isn’t needed and that federal involvement inflames the situation.

Illinois and Chicago filed a lawsuit Monday aiming to stop President Donald Trump's administration from sending hundreds of National Guard troops to Chicago.

Gov. JB Pritzker of Illinois, who called the mobilization of troops an “unconstitutional invasion” by the federal government, said that state officials would use every lever at their disposal to fight...