The summit between Presidents Trump and Xi marked a significant turning point in how Washington and Beijing manage their rivalry, especially concerning Taiwan, moving beyond mere optics.

The international media consensus following the Beijing summit between Chinese President Xi Jinping and US President Donald Trump was predictable: grand on optics, short on substance. Dismissing it on those grounds misses the deeper story of how the summit marked a turning point in how Washington and Beijing manage their rivalry, particularly over Taiwan. To understand where this relationship is going, a brief historical detour is in order. In April 2001, then US president George W. Bush...