Back home, President Barack Obama has eight months, a dogfight over the Supreme Court and scores of campaign speeches for a successor ahead of him. But overseas, the president already has begun a long, slow goodbye. […] “I think that I have been true to myself during this process,” Obama said, reflecting on his presidency and his accomplishments. Obama said he was proud of his health-care overhaul, the Iran-nuclear deal, his handling of what he described as hysteria around the Ebola crisis and “saving the world economy from a Great Depression.” “That was pretty good,” he said. …