Chinese President Xi Jinping may visit Pyongyang, North Korea, to speak with supreme leader Kim Jong Un as soon as late May or early June, according to senior government officials cited by South Korea's Yonhap news agency. The sources added that the Chinese side has already sent a security and diplomatic protocol team ahead to prepare for such a visit, and that Xi aimed to use the visit to position himself as a mediator in any future talks between Kim and U.S. President Donald Trump.