What Does Russia’s Wagner Rebellion Mean for China?

Just three months ago, China’s top leader, Xi Jinping, was in Moscow clinking glasses with Vladimir V. Putin and expressing his confidence in the “firm support” the Russian president enjoyed among his people. That confidence is now in question, after the Wagner private military group waged an insurrection in Russia that has shaken Mr. Putin’s image of invulnerability. Close watchers of China say that the mutiny, short-lived as it was, could lead Mr. Xi to hedge a close relationship with Russia that had already exposed Beijing to global criticism and…