Craig Greenberg’s move, requested by the Trump administration, allows federal agents more time to detain immigrants who are held at the city’s jail.

© Madeleine Hordinski for The New York Times

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local regulators.

© Aaron Blum for The New York Times

Ten people were hospitalized after the blast at a coke plant in Clairton, Pa., near Pittsburgh. One person who had been missing was found dead late on Monday.

© Aaron Blum for The New York Times