President Donald Trump has been threatening increased tariffs on China for months and now he says he's delivering it. Trump has said nothing can delay these tariffs, and for China that means an extra 10% slapped on to the cost of its exports. For China's government, this is all part of the great game of handling the new US president. However, the game is increasingly complicated and fraught. Trump previously spoke on the phone to China's President Xi Jinping – they discussed trade, TikTok, and fentanyl. Fentanyl has fuelled the US opioid drug crisis. Chinese companies export chemical precursors that…