News Snapshot:
Xi Jinping and Vladimir Putin are both 70 years old, which offers a ray of hope for those worried about their aggressive efforts to remake the world order. The next decade or two will likely bring leadership changes in China and Russia that could play a role in resetting their relationships with the West. But for the foreseeable future the United States and its allies will face a dire threat: An axis of aging and nuclear-armed leaders who are running out of time to achieve their grandiose ambitions. As Mr. Putin’s misadventure in Ukraine has made clear, autocratic leaders don’t...