Justice Department data, however, showed violent crime in 2024 hit a 30-year low in Washington, a self-governing federal district under the jurisdiction of Congress.

Washington’s Columbia Heights, usually lively with vendors, has been abnormally quiet, reflecting the impact of President Donald Trump’s federal law enforcement surge.

Mr. Trump made the comments a week after the White House told the Smithsonian that its museums would be required to adjust any content that the administration finds problematic in “tone, historical f...