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

An Illinois congressional candidate and current state representative said Customs and Border Patrol agents surrounded and harassed him Tuesday on Chicago's Northwest Side.

State Rep. Hoan Huynh, a Democrat from Chicago who is running to represent the 9th District, was in his vehicle about 11:30 a.m. near Montrose and Kimball avenues in Albany Park, a news release from his campaign said.

Huynh was in the area after hearing of possible U.S. Immigration and Customs Enforcement activity, the release said.

The release said six armed CBP agents blocked the front and back of his vehicle, and approached the car.

The release said the agent tried to break the glass.

Huynh's campaign said the agents blocked him and staffers from following an unmarked car with ICE agents inside.

Huynh was eventually able to leave.

"This was federal agents using violent intimidation trying to silence us," Rep. Huynh said.

Huynh is a Vietnamese refugee who came to America as a child when his family was granted asylum after collaborating with American troops during the Vietnam War, the release said.

Neither ICE nor CBP have responded to requests for comment.

A Rogers Park school says a vendor employee was detained Tuesday afternoon by federal agents.

The action drew parents to stand outside Decatur Classical School on Sacramento Avenue.

A Rogers Park school says a vendor employee was detained Tuesday afternoon by federal agents.

The school sent a letter to parents, saying this happened outside the school, and no students were present at the time.

Afternoon PE classes were moved inside as a result.

In the letter, the school says mental health professionals are available for students, and that "As a reminder, our school and CPS WILL NOT coordinate with federal representatives, and we WILL NOT allow ICE agents or any other federal representatives access to our school unless they produce a criminal judicial warrant."

The Trump administration has agreed to extend a federal judge's temporary block on deploying National Guard troops to Chicago while the U.S. Supreme Court weighs whether to stay the judge's order.

In a filing Tuesday - two days before U.S. District Judge April Perry's 14-day temporary restraining order is set to expire - Department of Justice attorneys said they'd consented to a 30-day extension of the order. The Trump administration appealed the matter to the U.S. Supreme Court late last week, and it's unclear when the high court may rule.

The state of Illinois responded on Monday to the Trump administration's emergency appeal to the Supreme Court to allow National Guard troops to take to Chicago-area streets.

That appeal seeks to overturn a judge's temporary restraining order that blocks the Guard's deployment.

Monday's response includes several arguments for why the request for a stay should be denied.

The state says there is no rebellion or danger of rebellion in Illinois, and therefore, no legal justification for using troops. Click here for more.