President Donald Trump told a cabinet meeting on Tuesday that his administration was considering taking over the governance of Washington DC to fight crime, a move that could upend the capital city's half-century-old system of self-government. "We can manage Washington, and frankly we're looking at doing that," Mr. Trump said in an hours-long public meeting. "We need a capital that works perfectly." Mr. Trump revealed that Wiles, his chief of staff, was...