The US president says it "seems like a Purge or Revolution" in South Korea, as President Lee visits the White House.

Mr Trump surprisingly cornered Ukrainian president Volodymyr Zelensky at the White House earlier this year. But Mr Lee said his encounter with the president went well “beyond my expectations” and credited this to having read Mr Trump’s book, The Art of the Deal.

At the White House, President Trump and Lee Jae Myung praised each other’s eagerness to talk to North Korea’s leader — even if he doesn’t want to talk to them.