Around 2 a.m., noisy revelers emerging from clubs and bars packed the sidewalks of U Street in Washington, many of them seeking a late-night slice or falafel. In short, that law enforcement surge to take control of the District of Columbia's streets did not appear to unfold on schedule.

President Donald Trump will hold a news conference Monday that he said "will, essentially, stop violent crime in Washington, D.C." The president promoted the news conference in multiple posts on his social media platform and on Sunday posted that it would "also be about Cleanliness and the General Physical Renovation and Condition of our once beautiful and well maintained Capital.