U.S. Customs and Border Patrol Commander Gregory Bovino is in federal court in Chicago, testifying before Judge Sara Ellis on alleged violations of a temporary restraining order during Operation Midway Blitz.

Border Patrol chief faces court deposition over tear gas use against Chicago immigration protesters as Trump's border czar defends controversial tactics.

U.S. District Judge Sara L. Ellis called Border Patrol Cmdr. Gregory Bovino into court to respond to reports that his agents violated her orders.

Immigration agents deployed chemical agents in Chicago neighborhoods over the weekend as attorneys argue the actions violate a temporary restraining order against such tactics.

Bovino has become the public face of the Trump administration’s aggressive deportation campaign in Chicago, known as “Operation Midway Blitz.” The judge called him into court one day after attorneys a

Mr. Bovino, a Border Patrol leader, appeared to use tear gas during a confrontation with residents on Thursday. Plaintiffs in a suit over federal tactics say that violated a court order.