WASHINGTON—When Homeland Security Secretary Markwayne Mullin decided to halt most vehicle stops by federal immigration officials, he didn’t have a chance to brief President Trump before news of the decision started to leak.
Mullin had made the decision Monday evening with acting Immigration and Customs Enforcement Director Dave Venturella, following the fatal shootings of two immigrants in the span of a week that prompted public outrage, including from a prominent Republican senator. The two officials, who had been trying to keep immigration enforcement out of the headlines, felt they needed to make an urgent change, according to people familiar with their thinking.
