U.S. President Donald Trump is again criticizing China on trade. Trump wrote on Sunday, “The Trade Deal with China continues, but too slowly, as they attempt to renegotiate. No!” His comments appeared on the news and social media service Twitter. The president followed that Monday with more tweets about trade imbalances. He wrote, “The United States has been losing, for many years, 600 to 800 Billion Dollars a year on Trade. With China we lose 500 Billion Dollars. Sorry, we’re not going to be doing that anymore!" Trump announced that he would raise taxes on $200 billion dollars of imports from China. His warning marked an escalation in the trade dispute between the world’s top two economies. His comments come after months of apparent progress in negotiations. The announcement caused prices on international financial markets to drop. It also led some observers to suggest that China might pull out of negotiations set for this week.