"I speak to everybody, we’ll work on that Taiwan problem." Donald Trump has just blown up his fragile peace with Xi Jinping. Fresh off his high-stakes trip to Beijing—where Xi explicitly warned him that messing with Taiwan could lead to direct military conflict—Trump announced he plans to speak directly with Taiwan’s President Lai Ching-te. No sitting US president has formally engaged Taipei since 1979, but Trump is treating the island's massive US weapons package as a "negotiating chip." Standing firm, Lai Ching-te welcomed the call, declaring Taiwan will never be annexed. Watch the superpower standoff.