What about Biden, the unlikely but indisputable leader of the Western alliance? Biden has always been easy to underestimate. He doesn’t give a good speech, he talks too much, and he sometimes behaves like a grumpy Irish granddad. But like Harry S. Truman, who seems ever-more a kindred spirit, Biden knows the things you discover by getting bounced around in life and deprecated by the smart guys — and most of all, what you learn just by keeping going, through good and bad. After a year, Putin’s staying power begins to look questionable, while Zelensky and Biden have never looked stronger.