Chicago experienced a chaotic — and violent — weekend of clashes between federal law enforcement and protesters, prompting President Trump to call up 300 National Guard members in Illinois on Saturday.

The big picture: Gov. JB Pritzker said the Trump administration's War Department presented him with an ultimatum earlier in the day: "'call up your troops, or we will.'"

Driving the news: A man and woman allegedly used their vehicles Saturday morning to strike a U.S. Customs and Border Protection agent's car and box in other agents' vehicles near 39th Street and South Kedzie Avenue, according to a complaint by the U.S. Department of Justice. • One of the agents then fired shots and struck one of the drivers, Marimar Martinez, who was later taken to a hospital and released. • The feds c

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