Kim Jon Un

Bolton Ruined North Korea Summit, Experts Say

Despite months of hard diplomacy, U.S. envoy Stephen Biegun didn't even get a seat at the negotiating table in Hanoi, where hawkish national security adviser John Bolton had the president's ear.

In Pictures: Kim Jong Un Visits China

Photos of North Korean leader Kim Jong Un on his visit to Beijing, where he had talks with Chinese President Xi Jinping.