The immigration blitz was action long promised by President Donald Trump who made mass deportation central to his campaign.

Bove previously issued a memo ordering federal prosecutors to investigate officials from sanctuary jurisdictions if they suspect interference with the deportation raids.

With two top Trump administration officials in Chicago, federal law enforcement began a “targeted” immigration blitz Sunday, according to a spokesman for U.S. Immigration and Customs

The number of arrests there was uncertain. Illinois officials, including the governor, said they had not been given advance notice.

Trump border czar Tom Homan and TV personality Dr. Phil are in the city to observe the operations, according to reports.

Chicago Mayor Brandon Johnson and Chicago Police Supt. Larry Snelling spoke out Tuesday on immigration enforcement in the city.

The North Texas-based TV host was embedded with U.S. immigration enforcement officers during an operation in Chicago Sunday.

A top Department of Justice official — and former criminal defense attorney for Donald Trump — joined federal law enforcement agents and administration officials on the ground in Chicago this weekend to carry out a series of immigration arrests after weeks of heightened tensions among immigrant communities bracing for threats.

Sources told NBC News that federal enforcement agencies will not conduct an operation in Aurora on Thursday as originally planned.

A top DOJ official supervised large-scale deportation raids in Chicago, resulting in 100 arrests. The DOJ is investigating potential law violations by sanctuary cities like Chicago, which refuses to assist federal immigration enforcement.

I am a member of the Sisters of Mercy of the Americas. I am writing to express my outrage at President Donald Trump’s focus on mass deportations of immigrants, closing of the southern border and use of military airplanes to deport immigrants.