The White House reportedly received a letter from North Korea's Kim Jong Un, inviting President Trump to visit Pyongyang. This could be the first overture before the potential fourth official visit.
The White House and State Department did not respond immediately Reuters confirms the report in South Korean newspaper Joongang Ilbo. The letter was reportedly dated before the country's last short-haul start a week ago.
The recent upheaval of the White House could have an impact on these discussions.
North Korea has long expressed its contempt for John Bolton, Trump's former national security adviser. Pyongyang called him a "warmonger" and a "flawed human product," glorifying regime change and preemptive strikes.
Last week Trump went so far as to accuse Bolton of discouraging Kim by mentioning the "Libya model" of negotiations. Last year, discussing what an agreement on North Korea's denuclearization might look like.
Libya's Moammar Qaddafi was overthrown and killed in 201
Trump said Kim wanted "nothing to do with John Bolton." upset.
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"Changing a consultant is unlikely to change the course of US politics dramatically," said Leif-Eric Easley, a professor at South Korea's Ewha Womans University.
The Associated Press has contributed to this report