CHICAGO — Illinois and Chicago filed a lawsuit Monday aiming to stop President Donald Trump's administration from sending hundreds of National Guard troops to the city, just as troops prepared to deploy and hours after a federal judge blocked troops from being sent to Portland, Oregon.

What You Need To Know

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

Trump moved to deploy the National Guard in another city on Saturday by authorizing 300 troops to protect federal officers and assets in Chicago

Trump has long threatened to send troops to Chicago, but it was not immediately clear when or exactly where they would be deployed

The lawsuit filed on Monday alleges that "these advance

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