CNN — To Donald Trump, Hungarian strongman Viktor Orbán is “fantastic,” Chinese leader Xi Jinping is “brilliant,” North Korea’s Kim Jong Un is “an OK guy,” and, most alarmingly, he allegedly said Adolf Hitler “did some good things,” a worldview that would reverse decades-old US foreign policy in a second term should he win November’s presidential election, multiple former senior advisers told CNN. “He thought Putin was an OK guy and Kim was an OK guy — that we had pushed North Korea into a corner,” retired Gen. John Kelly, who served as Trump’s chief of staff, told me. “To...