Pompeo also expressed confidence of a "successful outcome" but said that the summit would also lead to a lot more to be done in the path ahead, providing a "framework for the hard work that will follow".
Back in North Korea, the running bodyguards always accompany any state vehicle Kim is travelling on and the same was evident during the inter-Korean summit. "If diplomacy doesn't move in the right direction, sanctions will increase".
What's on the table in Singapore?
Kim's entourage is staying at the St Regis, less than 10 minutes walk away, with a motorcade that features a dozen North Korean bodyguards in dark suits who jog in Singapore's drenching heat beside his armoured auto.
"I am on a mission of peace and we're going to be carrying the hearts of millions of people from all", he said.
"We've got a very interesting meeting in particular tomorrow", Trump said at a luncheon with the Singapore prime minister on Monday.
"And if we're not willing to do that, we're not going to get a good deal", Graham said, complementing the global community - including China and Russian Federation - for standing behind Trump in regards to sanctions on North Korea.
Sweeping new Trump challenge to Obamacare
Insurers have faced risks tied to the Trump administration's efforts to undermine the Affordable Care Act since his election. These include a "ban on insurers denying coverage and charging higher rates to people with pre-existing health conditions".
If Trump and Kim are able to determine what the oft-repeated "denuclearization of the Korean Peninsula" would look like, that would be a positive first step, Wertz added.
Less than an hour after his arrival at Changi Airport yesterday afternoon, Kim Jong Un and his delegation drove straight to The St. Regis, where security has been ramped up over the course of last week.
Mr Kim's itinerary was reported in detail, which is a rarity for the state's media, according to South Korea's Yonhap news agency.
"North Korea can not denuclearise completely right now and hope to be safe from a president who said we're going to rain fire and fury on you, from a country that's been calling you evil for 25 years", said Horacio Falcao, a negotiations expert at the INSEAD graduate business school in Singapore.
White House press secretary Sarah Huckabee Sanders said Sung Kim, the U.S. ambassador to the Philippines who has taken the lead on policy negotiations with the North, will hold a "working group" with a North Korean delegation to discuss final preparations for the meeting.
A Trump administration official, speaking on condition of anonymity, said the US side was entering the talks with a sense of optimism and an equal dose of scepticism given North Korea's long history of developing nuclear weapons.
Watchers said Monday it still remains unclear whether the two countries can reach any historic agreement on denuclearization and security guarantee, but the latest external developments from both sides seem to indicate the talks will proceed successfully.
The talks have been portrayed by Trump in recent days more as a get-to-know-you session.
He has said the talks would be more about starting a relationship with Kim for a negotiating process that would take more than one summit.