From a distance, Donald Trump and Barack Obama have very different outlooks on the world. The president is a hyper-rational "Spockian," to borrow Jeffrey Goldberg's phrase from his new Atlantic article on the president's foreign policy. He calmly lectures on the limits of U.S. power and the importance of the American moral example.
Trump is bombastic. He threatens the families of terrorists and only belatedly revoked his promise to bring back waterboarding and "much worse."