Jim Stolley, the chief counsel for U.S. Immigration and Customs Enforcement in Minnesota, has left as government prosecutors grapple with a crush of cases.

Ah, those first wondrous hours of a snowstorm in New York. Two weeks later, the sidewalks are sooty and treacherous, and the parked cars are frozen in surrender.

Federal prosecutors had a warrant to collect evidence from Ms. Good’s vehicle, but Trump administration leaders said to drop it. About a dozen prosecutors have departed, leaving the Minnesota U.S. attorney’s office in turmoil.