The "madman" comment also came after a historic televised statement from Kim, in which the North Korean leader called Trump a "mentally deranged US dotard".
Weeks later, more insults followed. Immediately after the encounter, Dennis Rodman - one of the only Americans to have met Kim - was openly weeping while being interviewed by CNN's Chris Cuomo. "If diplomacy does not move in the right direction. those measures will increase". He bounced to the Singapore summit after a tempestuous G-7 summit where the US was isolated from its key European partners as never before and Trump even derided his Canadian host, a paragon of liberal democracy, as "dishonest" and "weak".
As his summit with U.S. President Donald Trump nears, Kim has reason to be nervous.
"Why would Kim... believe any commitments President Trump makes when he arbitrarily tears up an agreement with which the other party is complying?" said Antony Blinken, who was deputy secretary of state under Barack Obama. Later they were seen smiling and laughing over lunch.
Last week, Trump told reporters that Rodman had not been invited to the summit, but praised him as a "nice guy" and great rebounder.More news: Tyson Fury next fight: August 18th on Carl Frampton undercard
Officials from the two sides held last-minute talks aimed at laying the groundwork for a meeting that was nearly unthinkable just months ago when the two leaders were exchanging insults and threats that raised fears of war. "The world will see a major change". The two Koreas have been at "war" since, but that could soon change.
After a flurry of diplomatic overtures that eased tension, the leaders are headed for a history-making handshake that USA officials hope could eventually lead to the dismantling of a North Korean nuclear programme that threatens the United States.
Trump also said he hopes to eventually withdraw U.S. forces from South Korea, but said "that's not part of the equation right now". "I want to bring our soldiers back home", Trump said.
The meeting, which will be held at the Capella Hotel, a secluded luxury resort on Singapore's Sentosa Island, will see the U.S. offering North Korea security assurances in return for complete denuclearisation, according to Secretary of State Mike Pompeo.
After the men shook hands, they repaired inside for one-on-one talks.More news: Garmin Vivoactive 3 gets onboard storage for music
Having aides present in meetings with adversaries is regarded as a way of providing a president with protection, as it prevents remarks from being misinterpreted.
Later in the day, advisers will enter the room for a larger bilateral session and a working lunch. Carrying with them hopes to end seven decades of hostility and the threat of a nuclear confrontation, the meeting between the two firebrand leaders will be watched closely by people across the world. On Monday, she met senior USA diplomat Sung Kim at the Ritz-Carlton hotel to make final preparations for the summit.
Trump had been scheduled to fly back to Washington on Wednesday morning after spending Tuesday with Kim. Trump showed Kim the movie on an iPad during their talks.
Talks proceeded at multiple levels, including logistical discussions to allay Kim's fears of being deposed while traveling further afield than he ever has before as the country's leader.
Kim, meanwhile, was spotted taking a moonlit stroll around the high-end Marina Bay Sands hotel and casino, which is owned by GOP mega-donor Sheldon Adelson. They only ever met with former USA presidents, a symptom of six decades of hostility between the US and North Korea, which remains a pariah in the eyes of the West not just for its nuclear and missile threats but for flouting worldwide norms of diplomatic behavior.More news: Trump says does not endorse G7 communique, after 'weak' Trudeau comments