Trump said he thinks he's "very well prepared", adding "it's about attitude".
The unofficial guest list of individuals flying into Singapore while the summit occurs, however, has been growing daily, now including former White House aide Sebastian Gorka, Fox News host Sean Hannity, and former National Basketball Association star Dennis Rodman, who has made several trips to North Korea and describes Kim Jong-un as a "friend".
"But I think I've been prepared for this summit for a long time".
"He has also discussed [possibly] golfing with Kim", one official said. "So this isn't a question of preparation, it's a question of whether or not people want it to happen".
"It was just very nice, but did not say much other than we look forward to seeing you", he said.
"We're already way ahead here", said White House adviser Kellyanne Conway.
United States allies in the region have expressed concern that Trump's push to denuclearise Korea could ignore the North's sophisticated ballistic missile and chemical weapons programs. He said that Trump's tough line had forced Kim to plead to reschedule their summit. "If you hear me saying, 'We're going to use maximum pressure, ' you'll know the negotiation did not do well, frankly". I don't think it will be in one meeting. "It would be wonderful if it were".
According to USA officials speaking to Bloomberg, the North Korean leader is specifically concerned about an assassination attempt.
A Central Intelligence Agency report on North Korea's Kim Jong Un may have influenced President Donald Trump's approach to Pyongyang, according to a Japanese press report.
"We would certainly like to see normalisation".
It was the 7th meeting between the two leaders since Trump was elected USA president.
Abe said he had a detailed and candid exchange of views with Trump and the discussions focused on North Korea.
Trump and Kim are scheduled to meet on Tuesday.
"We need Trump to ask Kim the question and get an answer", said Honma said last month at a meeting organized by the Association of the Families of Victims Kidnapped by North Korea. Abe strongly hoped that this historic summit in Singapore will be a resounding success.