Daniel DePetris: Donald Trump’s cowboy diplomacy in the Western Hemisphere is succeeding, but has risks

Donald Trump has a special affinity for William McKinley, the former American president who was struck down by an assassin’s bullet in 1901, ending his second term before it really began. Trump has called his distant predecessor a “great but highly underrated” chief executive who made the United States wealthy by slapping tariffs on foreign goods. Whether or not this description is accurate, Trump genuinely believes it. Indeed, Trump feels so strongly about the man that he restored the name “Mount McKinley” to America’s highest peak during his first day in office.