https://www.reuters.com/article/us-usa-trade-china-ministry/trump-sets-50-billion-in-china-tariffs-beijing-vows-to-strike-back-idUSKBN1JB0KC >U.S. President Donald Trump said he was pushing ahead with hefty tariffs on $50 billion of Chinese imports on Friday, and the smoldering trade war between the world's two largest economies showed signs of igniting as Beijing immediately vowed to respond in kind.