If Trump walks out of the historic summit without a written agreement, it would be considered a failure and he would face harsh political attacks at home, months ahead of the mid-term elections. Tensions had soared past year after the North conducted missile and nuclear tests.
Trump also reiterated his position on a series of other issues, making clear the US, South Korea, Japan and China will help North Korea's economy if a deal is reached. It's just fresh out of Trump's playbook. "If they don't de-nuclearize, that will not be acceptable. And we can not take sanctions off".
"For the President of the United States to sit with the leader of North Korea across the table and to have all the issues laid out for them to have a frank discussion is a significant step".
"We're not going to go in and sign something on June 12", Trump asserted. "But I know many of you are going and I look forward to seeing you there". The 1950-53 conflict ended with an armistice but not a formal peace treaty.
Trump signaled that a grand bargain to reverse decades of enmity is not on the table for his unprecedented meeting Tuesday in Singapore with Kim, but sounded upbeat as he described the North Korean leader as honest about remaking the future for his impoverished country.
Speaking of the possibility, Trump said: "I think it will be well-received".
Trump's Twitter history suggests he has a lot of time on his hands, however.
A USA advance team was spotted at the Capella Hotel last week meeting with North Korean officials in preparation for the summit.
But the U.S. president also reiterated he would quit the talks if he felt he must, and would ramp up United States sanctions pressure on North Korea if the talks did not go well.
The president asserted North Korea must denuclearize, and indicated he will not provide sanctions relief without that happening.
In a meeting in the Oval Office, Trump said he's "very well prepared".
"The point is that Japan is bound to be ridiculed by the worldwide community and driven out of history if it persists in escalating confrontation with the DPRK under the pretext of the already resolved 'abduction issue, ' failing to acclimatize itself to the new situation", KCNA said. "What he did was he called off the summit", he said.
Presidential aides had said the decision was immature, but Trump reportedly brushed aside their concerns.
He added that he has not had any response from the administration about his comments and does not expect them to upset the North Koreans.
Bolton will join President Trump and what is believed to be a short list of American diplomats for the Singapore meeting on Tuesday, likely including Secretary of State Mike Pompeo.
Prime Minister Abe also expressed his support for a successful summit.
"The summit is all ready to go", Trump said, with Abe at his side.