Chinese President Xi Jinping is heading to the negotiating table with Donald Trump with a boost in bargaining power, after the US leader lost his ability to quickly raise tariffs for nearly any reason. Weeks before Trump lands in Beijing on March 31, the first trip by an American president since his last visit in 2017, the Supreme Court invalidated his broad emergency tariffs — a key point of leverage over China. That’s eliminated Trump’s second-term levies on China and left Beijing facing the same 15% global fee applied to US allies, a rate that comes with a 150-day expiry date.