Sometimes, No Se Puede

Mexico’s Leading Leftist Refuses to Master the Art of Losing

Memo to Andrés Manuel Lopez Obrador, the Mexican presidential candidate who lost on July 1 by six percentage points: Losing is bad; not accepting your defeat is worse.

Losing well is an underappreciated virtue. Whether we’re talking about a family game of Monopoly, a summer softball league, or an intense firm whose associates vie for a promotion to be partner, the ability to lose gracefully, and concede defeat in a manner that isn’t destructive, is essential to community well-being.

The art of graceful losing is also vital to any democracy. Americans relish …