Chicago federal intervention: Tracking surge in immigration enforcement operations | Updates

Speaking to reporters in the Oval Office on Monday afternoon, Trump said he did not yet see the need to use the Insurrection Act, but "if I had to enact it, I'd do it, if people were being killed and courts were holding us up, or governors or mayors were holding us up."

White House deputy chief of staff for policy Stephen Miller on Monday cited two incidents over the weekend in which protesters rammed the vehicles of immigration agents in Chicago, prompting the shooting of one protester, who federal authorities alleged was driving one of the vehicles and was armed.

"The struggle that is taking place right now is between the lawful exercise of power by the American people through a duly elected government versus the unlawful exercise of street violence in the form of domestic terrorism," Miller told reporters at the White House.

Miller added, "The clearest example of this is when you have ICE officers, who are carrying out the statutes and the laws of the United States to arrest and remove illegal aliens, who are being subjected to violent attacks in the conduct of their duties. That's an example of illegitimate violence, illegitimate power in the form of domestic terrorism being used to impede the conduct of their official duties."

- ABC News

Illinois Gov. JB Pritzker on Monday accused the Trump administration of staging a "military-style invasion" of Chicago, striking fear in residents with "thuggery" tactics by immigration agents and even deploying Black Hawk helicopters to raid an apartment building.

Pritzker slammed the Trump administration's immigration crackdown targeting Chicago just hours after the state and City of Chicago filed a lawsuit seeking to block the federalization and deployment of the National Guard. 

"Let me be clear, Donald Trump is using our service members as political props and as pawns in his illegal effort to militarize our nation's cities," Pritzker said during a news conference.

To support his point, Pritzker played a video of an ICE raid conducted last week on an apartment complex in the South Shore neighborhood of Chicago he claimed was filmed by federal authorities with high-definition cameras for social media purposes. He said it was the same video Secretary of the U.S. Department of Homeland Security Kristi Noem posted on social media on Saturday.

"They brought Black Hawk military helicopters and more than 100 agents in full tactical gear," Pritzker said.

He added, "In the dead of night and seemingly for the cameras, armed federal agents emerged from the Black Hawk helicopters, rappelling onto the roof of that apartment building."

The governor alleged the Trump administration is following a playbook to "cause chaos, create fear and confusion, make it seem like peaceful protesters are a mob by firing gas pellets and tear gas canisters at them."

"Why? To create the pretext for invoking the Insurrection Act so that he can send military troops to our city," Pritzker said.

The Department of Homeland Security issued a press release on Monday, claiming to debunk a "smorgasbord of lies" told by the governor.

"Our message to JB Pritzker: Get out of your mansion and see Chicago," said DHS Assistant Secretary Tricia McLaughlin in the release. "If J.B. Pritzker actually walked the streets of his own city, he would see domestic terrorists and violent rioters attacking police officers and the scourge of violent crime as a direct result of his own policies."

- ABC News

New law enforcement security bulletins claim ICE agents and facilities are at increased threat of violence from domestic extremists.

Those warnings come as federal officers report they were rammed and attacked by a car caravan in Chicago over the weekend -- one officer opening fire.

Those bulletins from the Center for Internet Security and Department of Homeland Security state that ICE agents and facilities have been targeted by an anarchist website in Chicago.

The assessment from CIS said at least four Chicago-area ICE facilities, including Broadview, have been surveilled with detailed layouts, diagrams and photos posted to what is described as an anarchist website. Click here for more.

Illinois Gov. JB Pritzker on Monday accused the president of using service members as "political props" in an effort to militarize U.S. cities.

Federal agents sent to Chicago over the past month for an immigration crackdown have made things less safe, the Democratic governor said during a news conference.

Earlier Monday, the state and city of Chicago filed a lawsuit seeking to stop Trump from sending National Guard troops to the nation's third-largest city.

Pritzker, who some view as a possible 2028 presidential contender, said he thinks Trump wants to "justify and normalize the presence of armed soldiers under his direct command."