"I believe we're going to have a terrific success or a modified success", Trump said during a press conference last week with Japanese Prime Minister Shinzo Abe.
"I feel really great", Trump said.
US President Donald Trump arrives at Paya Lebar Air Base for a summit with North Korea's leader Kim Jong Un, June 10, 2018, in Singapore. On Sunday, Trump said he'd know "within the first minute" whether Kim will agree to denuclearization.
A jet carrying Kim landed hours earlier.
The White House also announced Trump would be leaving Singapore earlier than previously expected and holding a media availability ahead of his departure.
Kim smiled broadly Sunday evening as he met with Singapore Prime Minister Lee Hsien Loong.
Trump economic aide Larry Kudlow suffers heart attack
Interested in Trump Administration? Kudlow joined the president at the Group of Seven summit in Quebec on Friday and Saturday. The associates spoke on the condition of anonymity due to sensitives of Kudlow's health status.
After Trump's comments, Kim, speaking through a translator, said the meeting showed the United States and North Korea have overcome past obstacles. Traffic was held up in the steamy midday sun and scores of bystanders were penned in by police when Trump went to meet Lee. Trump briefly called off the summit a few weeks ago before agreeing again to the meeting. The talks are expected to be devoted to the future of Pyongyang's nuclear program and the lifting of economic sanctions.
The fighting ended on 27 July, 1953, but the war technically continues today because instead of a difficult-to-negotiate peace treaty, military officers for the US -led United Nations, North Korea and China signed an armistice that halted the fighting.
Experts believe the North is close to being able to target the entire USA 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 US and the North.
North Korean leader Kim Jong Un has arrived at Singapore's Sentosa Island, where he'll be meeting shortly face-to-face with President Donald Trump.
So you can only imagine how much Singapore is paying to have the North Korean leader and an entire army of bodyguards and government officials at the St. Regis.
He's also repeatedly expressed his support for a meeting between Trump and Kim - even offering to facilitate it or serve as an ambassador of sorts. "In light of how many flimsy agreements the United States has made in previous years, this President will ensure that no potential agreement will fail to adequately address the North Korean threat".