On March 31 and possibly also April 1, then-CIA director Mike Pompeo had secretly met with Kim in Pyongyang to lay the groundwork for the summit, including their discussing possible venues.
On April 17, on the day of a meeting at Mar-a-Lago of Trump with Prime Minister of Japan Shinzō Abe, sources revealed to reporters the identities involved in the discussions in Pyongyang.
On March 31 and possibly also April 1, then-CIA director Mike Pompeo had secretly met with Kim in Pyongyang to lay the groundwork for the summit, including their discussing possible venues. On April 17, on the day of a meeting at Mar-a-Lago of Trump with Prime Minister of Japan Shinzō Abe, sources revealed to reporters the identities involved in the discussions in Pyongyang.
2018 North Korea–United States Singapore Summit