US Secretary of State Mike Pompeo said Monday that the goal of the meeting was the "complete and verifiable denuclearization of the Korean peninsula", adding that the US had not received any firm commitment from Pyongyang on exactly what the two sides would agree to. On Monday, she met senior USA diplomat Sung Kim at the Ritz-Carlton hotel to make final preparations for the summit. Previous reports had suggested Trump would leave on Wednesday.
On the eve of the first encounter between a sitting US president and a leader of North Korea, American officials are maintaining any resulting agreement must lead to an end of North Korea's nuclear weapons and ballistic missile threats.
Citizens in the North Korean capital watched the coverage on a big screen TV and read it on the front page of newspapers.
Just hours before Donald Trump was scheduled to meet with North Korean leader Kim Jong Un in Singapore, the president was drawn back to Twitter where he took aim (albeit with poor spelling) at domestic critics.
U.S. and North Korean officials are set to meet Monday morning in Singapore to make final preparations for Tuesday's meeting.
Pyongyang has said it is willing to deal away its entire nuclear arsenal if the United States provides it with reliable security assurances and other benefits. "That's necessary and appropriate". North Korea has always been a useful buffer between China and US forces in South Korea.
North Korea had earlier criticized USA national security adviser John Bolton, who had called for North Korea to quickly give up its nuclear arsenal in a deal that would mirror Libya's abandonment of its program for weapons of mass destruction.
Experts on North Korea say that the shortened meeting time leaves nearly no room to forge a path for Pyongyang's "complete, verifiable, irreversible denuclearization", or CVID, which the US State Department was promising just last week. Ahead of his trip, President Trump said "every issue will be raised".
While there has been a wave of bipartisan voices looking to support the president's efforts to avert war in the Korean peninsula, there have also been concerns in foreign policy circles that the meeting will elevate Kim's status as a brutal dictator overseeing a regime complicit in horrendous human-rights abuses.
He was received by Singapore's Foreign Affairs Minister Vivian Balakrishnan.
Trump and his senior officials have in recent weeks been referring to Kim as "Chairman". "We appreciate your hospitality and professionalism and your friendship".
Still, the sense of anticipation was great in Singapore, with people lining spotless streets holding cellphones high as Trump headed to meet Lee. The U.S. president turns 72 on June 14.
Donald Trump has arrived in Singapore only a couple of hours after Kim Jong-Un.
The Trump administration has largely continued what it calls its "maximum pressure" campaign on the North, but has moved toward a softer tone as the summit approached.
The summit's venue is the Capella hotel on Sentosa, a resort island off Singapore's port with luxury hotels, a Universal Studios theme park and man-made beaches.