A close aide to Kim Jong Un arrived in Washington on Thursday to lay the groundwork for a second summit between U.S. President Donald Trump and the North Korean leader, with negotiations over how to denuclearize the Korean Peninsula stalled.Kim Yong Chol is expected to meet with U.S. Secretary of State Mike Pompeo on Friday and, if progress is made, visit the White House for talks with Trump, diplomatic sources said.(North Korean official Kim Yong Chol is pictured at Dulles airport in Virginia on Thursday)Kim Yong Chol, vice chairman of the Central Committee of the Workers' Party of Korea, …READ FULL ARTICLE