Justice Dept. Is Said to Be Investigating D.C. Mayor Over Foreign Trip

The investigation into Muriel E. Bowser, which is being handled by the U.S. attorney’s office in Washington, could face significant hurdles because of the known facts of the case and recent turmoil inside the Justice Department.It remains unclear how far the investigation into Muriel E. Bowser, a Democrat who has served as Washington’s mayor since 2015, has advanced.