Bolton said Pompeo will present Kim with a USA plan for complete Korean denuclearization within a year during his upcoming trip to North Korea.
Sung Kim, formerly an ambassador to South Korea and a nuclear negotiator with the North during previous talks, has taken on a key role in dialogue with Pyongyang in recent months.
While slamming the Democrats and what he calls the "fake news" media for their complaints, Trump said that, . if it weren't for him, the US would now be at war with the North.
Last week, the respected 38 North website said recent satellite imagery showed that not only were operations continuing at Yongbyon, the North was also carrying out infrastructure works.
"First, they would want to say that they have lots of intelligence on North Korea and that its relations with the US would go back to the past if it doesn't take practical disarmament steps", Nam said.
"[If President Barack Obama] had gotten along with North Korea and made the initial steps toward a deal that I have, the Fake News would have named him a national hero!" the president wrote on June 18.
North Korea's past behavior offered a cautionary tale for the Trump administration ahead of the Singapore summit, with Pyongyang having reneged on earlier airy promises regarding denuclearization.
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Sanders insisted the goal remains the same as it has always been, denuclearization, . adding the USA will continue pushing for that. and working closely with North Korea.
Mr Trump, who tweeted after his summit with Kim that Americans could "sleep well tonight" because he has reduced the threat, said he believes Pyongyang will keep its word to disarm.
Bolton also said that the plan had not been put into action yet, which makes sense when you consider the fact that there is no denuclearization agreement between the two countries, they don't seem close to one, and there hasn't been any indication that they even agree what denuclearization means.
North Korea, according to NBC News and The Washington Post - citing discussions with us intelligence officials - is seeking to deceive Washington about the quantity of nuclear weapons and ballistic missiles it possesses and the scope of related facilities.
My colleagues also reported that the North Koreans have operated "a secret underground uranium enrichment site known as Kangson", which was first reported in May by The Washington Post. "But the Trump Administration will have to act quickly".
While Pyongyang has suspended its missile and nuclear tests, the official said, "there is absolutely unequivocal evidence that they are trying to deceive the United States".
Satellite imagery and USA intelligence officials, contradict that assertion, revealing evidence of recent work at multiple secret sites in North Korea connected to the country's production of enriched uranium for nuclear weapons.
Russian Federation has repeatedly warned the U.S. against taking military action against North Korea, advocating for a diplomatic approach instead.