Juan Guaido (C), head of the opposition-controlled National Assembly, delivers a speech at the Francisco de Miranda avenue, in Caracas, Venezuela, on Jan. 23, 2019. Venezuelan President Nicolas Maduro on Wednesday announced he was severing "diplomatic and political" ties with the United States after the U.S. authorities recognized the opposition leader Juan Guaido as the nation's interim president. (Xinhua/Boris Vergara)