The official was not authorized to speak publicly about internal deliberations and insisted on anonymity. Trump will plan to return to Washington, D.C., about 15 hours sooner than the scheduled end of the summit, which had been set for Wednesday afternoon.
Mr Trump's first year in office was marked by bitter exchanges between himself and Mr Kim - as North Korea conducted several ballistic missile tests in defiance of the worldwide community. The article also stresses the need for confidentiality - meaning Trump will have to resist tweeting the minutes of the meeting.
The Trump administration's challenge will be to make sure the U.S.is not normalizing the isolated country as a nuclear weapons state, Snyder added.
Pompeo said the U.S.is prepared to offer "unique" security guarantees to North Korea to ensure that eliminating its nuclear weapons won't end badly for Kim's regime. "But there's a risk because if the meeting is perceived to be very good and there's a lot of progress made, that could ultimately lift the ETF".
The North Korean leader has also said he now wants to focus on building the country's economy - and wants sanctions relief and global investment. On the U.S. side, Trump was to be joined by Pompeo, chief of staff John Kelly, national security adviser John Bolton and U.S. Ambassador to the Philippines Sung Kim, along with a few others.
They also revealed who would be in the room for Tuesday's highly anticipated Trump-Kim summit in Singapore. It's where former Chinese President Hu Jin Tao stayed during the 2009 APEC Summit (and don't tell Trump, but Hillary Clinton stayed there in 2011, too). After the meeting, this could make it hard to verify what's said and whether any promises were made. "I'll tell you what the Marshall wants more than anything". Trump on Monday forecast a "nice" outcome, while Kim spent the day out of view.
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She also said the USA president wasn't entirely wrong in pressing Germany to increase defence spending. Trump and the leaders of the other nations, especially on trade".
Singapore's reputation for rigid law and order was seen as a major factor for being chosen to host Tuesday's summit.
A man watches a TV news program about the summit at the Seoul Railway Station in South Korea on Monday.
It's not clear what the USA side has been able to extract from the North Koreans in terms of their willingness to get rid of their nuclear weapons or allow inspectors into the country to catalogue the scale of their program.
Beyond the impact on both leaders' political fortunes, the summit could shape the fate of countless people - the citizens of impoverished North Korea, the tens of millions living in the shadow of the North's nuclear threat, and millions more worldwide.
Last week, Rodman said he would "give whatever support is needed" to his "friends" Trump and Kim.
The world now needs to wait for Trump and Kim to finally meet.
"If diplomacy doesn't move in the right direction, sanctions will increase".
Experts believe the North is close to being able to target the entire US mainland with its nuclear-armed missiles, and while there's deep skepticism that Kim will quickly give up those hard-won nukes, there's also some hope that diplomacy can replace the animosity between the USA and the North.