Transcript for North Korea threatens to cancel summit between Trump and Kim

Meantime tonight, the president dealing with something else, North Korea. Will the summit take place after all? Tonight here, the first standoff before the summit, North Korea now threatening to cancel the talks, today slamming the U.S. For what it calls one-sided demands to give up its nuclear weapons. The president was asked today if the summit was still on, and ABC's Jonathan Karl with how he responded. Reporter: If president trp is rattled by the latest threats from North Korea, he's not showing it. We'll see what happens. We'll see. Time will tell. Reporter: Earlier, press secretary Sarah Sanders said the latest move by North Korea came as no surprise. This is something that we fully expected. Reporter: But the change in tone is dramatic Fred the all smiles meetings between Kim Jong-un and the secretary of state, to an angry statement from the regime's chief negotiator, saying he is "Totally disappointed" by recent comments from U.S. Officials. Particularly, the American demand that North Korea give up all its nuclear weapons before getting anything in return. We want to see the denuclearization process so completely under way that it's irre Reporter: North Korea now says such talk could scuttle the summit. "If the U.S. Is trying to drive us into a corner to force of unilateral nuclear abandonment, we will no longer be interested in such dialogue." North Koreans seem particularly upset by national security adviser John Bolton, who called on them to do what Libya did more than a decade ago. We have very much in mind the Libya model from 2003, 2004. Reporter: The Libya model? After Libya gave up its nuclear program, Libyan dictator moammar gaddafi overthrown and murdered on the streets. North Korea once called Bolton human scum. Today, they add, quote, "We do not hide our feelings of repugnance towards him." They may also be aware of the political stakes for president trump, who has mused about winning a Nobel prize. Nobel, Nobel, Nobel! That's very nice, thank you. That's very nice. Nobel. I just want to get the job done. So, let's get to January Karl, he's live at the briefing room there inside the white house tonight. The summit less than a month away, Jon. Bottom line for folks at home, does the white house think this summit is going to happen? Reporter: The planning continues. And as we've seen from the muted response to the white house to the latest from North Korea, they don't want to do anything to throw it off, so, for now, David, at least, it is all systems go. All right, Jon Karl there at the white house. Jon, thank you. Next tonight, the high

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