Trump’s comments on Sunday marked a major escalation in tensions between the world’s largest economies, and a shift in tone from the president, who as recently as Friday had cited progress towards a deal.Stock markets sank and oil prices tumbled on his remarks, as negotiations to end the months-long trade war were thrown into doubt.

“We are also in the process of understanding the relevant situation. What I can tell you is that China’s team is preparing to go to the United States for the discussions,” Chinese Foreign Ministry spokesman Geng Shuang told a news briefing.But Geng did not say if Vice Premier Liu He, who is China’s lead official in the negotiations, was to be part of the delegation as originally planned.”What is of vital importance is that we still hope the United Stat…