U.S. President Donald Trump deployed the National Guard to Chicago, Illinois.

Abigail Jackson, White House Spokesperson, said on the 4th (local time), "President Trump approved the deployment of 300 National Guard troops to protect federal officials and asset," adding, "President Trump will not stand by and watch the lawlessness plaguing American cities."

An Immigration and Customs Enforcement (ICE) agent (center) watches local residents protesting reports that ICE agents arrested an unidentified man who was in a vehicle at a gas station in the Brighton Park area of Chicago, Illinois, on the 4th (local time). /Courtesy of AFP

According to the AP and Reuters, earlier that day, Illinois Gov. J. B. Pritzker, a Democrat, said, "This morning, the Department of War (the Department of Defense) of the Trump administration delivered an ultimatum telling me to deploy troops, and that if I did not, they would deploy the military themselves."

Pritzker said, "It is absolutely outrageous and un-American to order a governor to deploy troops within our territory against our will." The National Guard is ordinarily under a governor's command, but a president can command the National Guard in emergencies.

The National Guard deployment to Chicago came after an incident that morning in which a federal Border Patrol agent fired at a female driver in the city's Southwest Side. The Department of Homeland Security said the woman who was shot was armed and refused to comply with orders to disarm, prompting defensive fire.

By contrast, plans to deploy the National Guard in Portland, Oregon, were halted by a court order. The Ministry of National Defense sent Oregon an official letter stating it would deploy 200 National Guard troops to Portland for 60 days, but the city of Portland filed for an injunction on the 28th to block it.

U.S. District Judge Karin Immergut, who granted the injunction, said that small-scale protests do not justify deploying federal troops, adding, "This country is governed by the Constitution, not martial law." On the day the injunction was issued, about 400 protesters in Portland marched to an Immigration and Customs Enforcement (ICE) detention facility and held a demonstration.

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