Mountain-naming turned out to be a curiously high priority for Donald Trump. Mere hours after his inauguration, the president signed an executive order to change the name of America’s highest peak from Denali, of indigenous Alaskan origin, back to Mount McKinley, as it was officially known until Barack Obama intervened in 2015. The rechristening reflects more than just the usual culture-war ping-pong. Like Mr Trump, William McKinley was a “tariff man”. As a congressman and later president, he swung America toward protectionism in the late 19th century. “President McKinley made our country very rich through tariffs and through talent,” said Mr Trump in his inaugural address.