The Trump administration has taken steps that have hobbled Washington’s efforts to reduce crime, such as gutting its U.S. attorney’s office and enacting budget cuts of more than $1 billion.

© Kent Nishimura for The New York Times

Troops appeared near the Washington Monument on Tuesday evening. But it remained unclear whether the eventual show of force would match the president’s apocalyptic rhetoric.

Mayor Muriel Bowser said city leaders were focused on how to make the most of the additional federal support.

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