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 skepticism given North Korea's long history of developing nuclear weapons.
In a Monday afternoon Tweet, Stelter fired a stiff jab in the direction of the Fox News host - arguing that the word "interview" might not describe what is set to air on Tuesday night. "And it's all within the budget that the prime minister has specified, anyway".
"I feel really great", Trump said.
Trump made the comments sitting next to Kim minutes after the two leaders shook hands for the first time, images that were broadcast worldwide.
Marina Bay Sands is also home to a luxury 5-star hotel, shopping mall, convention center, museum, two theaters, multiple upscale restaurants, and two floating pavilions.
Welcome to our live coverage of the US-North Korea summit.
When Singaporean Prime Minister Lee Hsien Loong visited the global media center for the summit at F1 Pit Building on Sunday, he said it will cost the city state "around 20 million Singaporean dollars" (W16.1 billion, US$1=W1,078) to host the "historic summit".
"The entire world is watching the historic summit between (North Korea) and the United States of America, and thanks to your honest efforts. we were able to complete the preparations for the historic summit", Kim told Lee through an interpreter.
Trump is set to meet with Lee on Monday.
In part, these lowered expectations are a reflection of the extreme skepticism among many that the North can be persuaded to give up a nuclear programme it has stubbornly built over the decades, often in secrecy and despite intense sanctions, global condemnation and widespread suffering among its people.
It was a striking about-face from less than a year ago, when Trump was threatening "fire and fury" against Kim, who in turn scorned the American president as a "mentally deranged USA dotard". Four of the nation's six nuclear tests have taken place since Kim took power in 2011.
White House press secretary Sarah Huckabee Sanders said Sung Kim, the USA 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.
Following an on-camera greeting, the pair will begin the summit with a one-on-one meeting with only their translators, according to a senior Trump administration official. It's a reflection of the intense global curiosity over Kim's sudden turn to diplomacy in recent months after a slew of North Korean nuclear and missile tests past year raised serious fears of war. Add North Korea as an interest to stay up to date on the latest North Korea news, video, and analysis from ABC News.
Following their meeting, President Trump will hold a media availability with reporters as Kim Jong Un departs back to North Korea.
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. The meeting was initially meant to rid North Korea of its nuclear weapons, but the talks have been portrayed by Trump in recent days more as a get-to-know-you session.
That's in part because of South Korea's diplomatic outreach to the North, which was highlighted by two summits this spring between the rivals' leaders.
Trump advisers cast his actions as a show of strength before the Kim meeting.
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