Whenever he leaves office, in early 2021, 2025, or sometime in between, the world will be in a worse state than it was in 2016. China has become more assertive and even aggressive. Russia, under its president for life, Vladimir Putin, carries on brazenly as a rogue state, destabilizing its neighbors and waging a covert war against democracies through cyberattacks and assassinations. In Brazil, Hungary, the Philippines, and Saudi Arabia, a new crop of strongman rulers has emerged. The world is struggling to deal with the COVID-19 pandemic and is just coming to appreciate the magnitude of its economic and social fallout. Looming over everything is climate change.