“Dangerously incoherent.” “Bizarre rants.” “Outright lies.” “Temperamentally unfit.” “Not someone who should ever have the nuclear codes.” Such were the phrases employed by presumptive Democratic nominee Hillary Clinton in describing her Republican opponent Donald Trump’s foreign-policy vision for the United States, in a speech delivered earlier this month. Throughout the speech, Secretary Clinton echoed nearly every neoconservative criticism of Trump that at times it almost seemed as if someone in her bloated staff had merely copied and pasted an article right out of the Weekly Standard onto the teleprompter. Be that as it may, the speech was predictably well received from a national press bitterly hostile to Mr. Trump’s unorthodox candidacy. After his own high-profile foreign-policy address at the Center For the National Interest in April, the New York Times editorial board—a paragon of foreign-policy wisdom—offered a scathing review, accusing Trump of peddling “outright falsehoods, often based on wrong assumptions.” Yet, in a world after the Paris, San Bernardino and Orlando attacks, are Trump’s assumptions all that wrong? More broadly, is his foreign-policy vision as “dangerously incoherent” as Secretary Clinton would lead us to believe?