In March, Trump accepted Kim's invitation to meet, breaking with predecessors who had shunned any type of a summit without major concessions from North Korea or multilateral talks that included a host of other Asian countries.
On the eve of the summit, Trump stayed in his hotel but Kim chose to take a sightseeing tour of Singapore's hot spots, visiting botanical gardens at Gardens by the Bay and posing for a selfie before making a stop at Singapore's iconic three-tower Marina Bay Sands hotel.
"The underlying driver is a transformational process of Kim Jong-un leading North Korea into a new place in the region and the world", said John Delury, a professor of Chinese studies at Yonsei University in Seoul.
Before now, TV stations and newspapers in Pyongyang have only put out their first reports after events have finished - but by North Korea's standards, the announcement that Mr Kim was in Singapore came much earlier than usual.
Kim, 72, has been Kim Jong Un's most trusted policy adviser since the North Korean leader began a peace offensive with the US and South Korea in January. It will certainly be an exciting day and I know that Kim Jong-un will work very hard to do something that has rarely been done before ...
President Donald Trump has arrived on Singapore's Sentosa Island for his historic meeting with North Korean leader Kim Jong Un. Again accusing the longtime USA ally of unfair trade practices, Trump added: "Then Justin acts hurt when called out!"
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Trump and Kim could agree on a declaration to end the 1950-53 Korean War, the fire in which his grandfather, Kim Il Sung, forged the North Korean state.
Trump, asked last week if Rodman had been invited to Singapore, said, "No, he wasn't".
The meeting would have been unthinkable past year when tensions spiraled in the region over North Korea's nuclear and missile programs as it raced toward the goal of developing a nuclear-tipped missile capable of hitting the United States.
He was received by Singapore's Foreign Affairs Minister Vivian Balakrishnan.
North Korea, though, has shown little appetite for surrendering nuclear weapons it considers vital to the survival of Kim's dynastic rule.
No is North Korea's minister of the People's Armed Forces.
Alluding to the North's concerns that giving up its nuclear weapons could surrender its primary deterrent to forced regime change, Pompeo told reporters that the US was prepared to take action to provide North Korea with "sufficient certainty" that denuclearization "is not something that ends badly for them". As I recently wrote, while certain sanctions on North Korea are discretionary, a key 2016 law specifically obligates the president to sanction people and entities complicit in human rights abuses in North Korea - not just those involved in weapons proliferation - and the Trump administration legally can't suspend sanctions more broadly unless North Korea implements key human rights reforms.
For both men, the summit, the first between leaders of North Korea and the United States, is likely to be a defining moment of their careers.
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Heidi Heitkamp , a North Dakota Democrat in a tough re-election fight in 2018, said she was "very interested" in the proposal. The defense bill will be open for amendments, McConnell said, and "we'll see what happens as it moves across the floor".