ICE doesn't issue warrants, because they can't. Immingration matters aren't criminal, and ICE are not law enforcement, though they certainly love to cosplay as some sort of mix between law enforcement and military.
That's why ICE has to "ask" law enforcement to hold on to someone who gets arrested on another matter, and why plenty of police departments tell them to go pound sand.
That's why ICE has to "ask" law enforcement to hold on to someone who gets arrested on another matter, and why plenty of police departments tell them to go pound sand.