US President Donald Trump’s sweeping immigration crackdown increasingly is sparking violent confrontations with both migrants and American citizens, a development grimly underscored by an ICE officer’s fatal shooting of a Minneapolis woman this week. Under ‌Trump’s orders to ramp up deportations, masked immigration officers have surged into Democratic-led cities, sprayed tear gas in residential streets, tackled people in car parks and pointed guns at bystanders trying to film them. A federal...