The general testified at length, for example, about a mission, code-named Operation Excalibur, in which federal immigration agents on foot and on horseback marched through MacArthur Park, a Los Angeles landmark in a neighborhood now largely home to immigrant families with low incomes.

General Sherman said that he had objected when the administration initially wanted to conduct the mission on Father’s Day and to stage troops and military equipment in the middle of the park in a “show of presence.” The placement of troops, he said, seemed to inappropriately involve the military in what appeared to be a risky and low-value operation.

Only after federal officials planned to reposition the troops outside the park did he recommend approval. But when he expressed his concerns, he said, Gregory Bovino, a Border Patrol chief who is overseeing the federal immigration crackdown in Southern California, questioned his loyalty to the country.

Judge Says Trump’s Use of Troops in L.A. Is Illegal (New York Times)