President Donald Trump on Friday threatened to slap a "massive increase of Tariffs" on Chinese products imported into the United States to "financially counter" new export controls that China imposed on rare earths from that country. Trump also threatened in a social media post to cancel his upcoming meeting with Chinese President Xi Jinping because of the dispute. Stock markets dropped after Trump's bellicose Truth Social post about China, in which he said that "there is no way that" country "should be allowed to hold the World captive'" with its rare earth policy.