Illinois and Chicago filed a lawsuit to block the Trump administration's federal troop deployment to the state's most populated metropolis as legal action looms in other states over the same issue.

Illinois Gov. JB Pritzker said the Trump administration has threatened to bypass him and call up the state's National Guard for a possible deployment.

“This morning, the Trump Administration’s Department of War gave me an ultimatum: call up your troops, or we will,” Pritzker said in a statement.