Donald Trump’s carefully choreographed Beijing trip is being overshadowed by one issue he clearly doesn’t want to talk about: Taiwan. As Trump avoids any public mention of the island, U.S. Secretary of State Marco Rubio has stepped into the spotlight with a much tougher, more defiant tone on America’s Taiwan policy. Here's why Rubio's decision to “dare” Xi Jinping on Taiwan risks upsetting the delicate manoeuvres around this high‑stakes visit.