"Don't be a fool" letter returned to Trump, says Erdogan

U.S. President Donald Trump (R) and Turkish President Recep Tayyip Erdogan attend a joint press conference at the White House in Washington D.C. on Nov. 13, 2019. Donald Trump and Recep Tayyip Erdogan failed to reach agreement on major bilateral differences during their Wednesday's meeting at the White House. (Photo by Ting Shen/Xinhua)