Washington (CNN) President Donald Trump said Tuesday that North Korean leader Kim Jong Un has "kept his word" when it comes to nuclear and missile testing, contradicting his own national security adviser, John Bolton, who just hours earlier had accused Pyongyang of failing to follow through on its commitments.

Speaking to reporters on the South Lawn of the White House, Trump said he had received a warm letter from Kim before again downplaying North Korea's latest test of a short-range ballistic missile -- a move Bolton and acting Secretary of Defense Patrick Shanahan have said violated UN resolutions

"He kept his word. There's no nuclear testing. There's no large, there's no long-range missiles going up. The only things he's set up were very short term, short range. That was just a test of short range. It's a whole different deal, but he's kept his word to me. That's very important," the President said.

Earlier Tuesday, Bolton had told the Wall Street Journal at a speaking event in Washington that North Korea is not complying with the terms agreed upon during Trump's first summit with Kim, in Singapore last year.

"What they've said was that they're not going to test ballistic missiles, intercontinental range ballistic missiles, or have nuclear tests. That's continued. They're doing a lot of other things that still indicate that they have not made a strategic decision to give up the pursuit of deliverable weapons, which is why we continue the maximum pressure campaign," Bolton said.

In May, Bolton said that "there is no doubt" the tests violated the UN resolutions, something Shanahan has also said publicly.

But that conclusion is at odds with Trump's own assertions.

"My people think it could have been a violation," Trump said in May. "I view it differently."

The President added that he thinks Kim could be a man "who wants to get attention," but said there are no nuclear tests or long-range missiles being fired, something he again pointed out Tuesday.

Trump claims remains 'keep coming back'

Trump also claimed Tuesday that the remains of US soldiers in North Korea "keep coming back," despite the US Defense POW/MIA Accounting Agency telling CNN in May that the effort was suspended due to a lack of communication from North Korean officials following the second summit between the two leaders, in Hanoi, Vietnam, earlier this year.

"We have a very good relationship together," Trump said of Kim. "Now I can confirm it because of the letter I got yesterday, and I think something will happen that's going to be very positive. But in the meantime, we have our hostages back, the remains keep coming back, we have a relationship."

The return of American remains was part of the US-North Korea agreement reached during Kim and Trump's Singapore summit.

Following the summit, North Korea handed over 55 cases of presumed remains of US service members killed during the 1950-53 Korean War.

"DPRK officials have not communicated with DPAA since the Hanoi summit," Chuck Prichard, a spokesman for the Defense POW/MIA Accounting Agency, said in May.

"As a result, our efforts to communicate with the Korean People's Army regarding the possible resumption of joint recovery operations for 2019 has been suspended," he added.

'I wouldn't let that happen'

Trump would not confirm reports that Kim Jong Un's half brother was a CIA asset Tuesday but said he would tell Kim that "would not happen under my auspice."

"I saw the information about the CIA with respect to his brother or half brother and I would tell him that would not happen under my auspice, that's for sure. I wouldn't let that happen under my auspices," he said when asked about details published by the Wall Street Journal

The CIA operative claims are also described in a book by Washington Post reporter Anna Fifield published on Tuesday. "The Great Successor," about Kim Jong Un, details meetings between Kim Jong Nam and his handlers in the two countries. The CIA has declined to comment to CNN.

When asked if the CIA was wrong to use Kim's half-brother as an asset if it did indeed do so, Trump said: "I don't know anything about that. I know this, that the relationship is such that that wouldn't happen under my auspices, but I don't know about that. Nobody knows."

JUST WATCHED WSJ: Kim Jong Un's slain half-brother was CIA source Replay More Videos ... MUST WATCH WSJ: Kim Jong Un's slain half-brother was CIA source 01:19

Without going into specifics on the contents on the letter he had gotten from Kim, Trump said receiving it solidified the fact he has a good relationship with the North Korean leader, a claim he has repeatedly made over the past year.

"I just received a beautiful letter from Kim Jong Un ... I appreciated the letter," the President said.

When asked whether there would be a third summit with Kim, Trump said he hoped so but did not want to get ahead of progress.

Last month, Trump said he still believes North Korea "would like to make a deal" and left the door open for a third summit despite a new warning from Pyongyang urging the US to change the course of its negotiations "before it is too late."

"I think they would like to make a deal and we would like to make a deal," the President told reporters during his recent visit to Ireland, adding that he looks forward to seeing Kim "at the appropriate time." </s> SEOUL, June 12 (Reuters) - A year after President Donald Trump and North Korea's Kim Jong Un met for the first time, they appear committed to a personal bond upon which hopes for peace appear to rest, despite a stalemate in efforts to get Kim to abandon nuclear weapons.

Trump and Kim agreed at the first U.S.-North Korea summit in Singapore to work towards the complete denuclearisation of the Korean peninsula, easing fears of war between their countries.

But there has been little progress since then and tension has again been rising recently with North Korea resuming some limited testing of weapons and warning of "truly undesired consequences" if the United States was not more flexible.

But Trump said on Tuesday he had received a "beautiful letter" from Kim.

"I can´t show you the letter obviously, but it was a very personal, very warm, very nice letter," Trump told reporters outside the White House.

Trump, who has tried to convert what he feels is a warm personal relationship with Kim into a diplomatic breakthrough, gave no details, but repeated that he believed North Korea had "tremendous potential".

"I think that something will happen that´s going to be very positive," he said.

North Korea's state media has not mentioned any letter.

The optimism that the two leaders generated in Singapore all but evaporated in February when a second summit, in Vietnam, dramatically fell apart without even a recommitment to the general goals outlined in a statement signed in Singapore.

Since then, North Korea has complained of U.S. sanctions and Kim said he would wait until the end of the year before deciding on whether to take a "new path".

Both sides have said they are open to talks but that the other side needs to change their policy.

The United States says North Korea needs to make verifiable progress toward giving up its nuclear weapons before any sanctions are eased, while North Korea says the United States has done nothing to reward steps already taken.

In the weeks ahead of Wednesday's anniversary of the Singapore summit, North Korean state media has repeatedly warned that the statement signed there was in danger of being rendered meaningless if the United States did not drop demands for North Korea to unilaterally dismantle its nuclear arsenal.

According to the Singapore foreign ministry, North Korea's embassy there had been planning an event to commemorate the summit anniversary and invited Singapore officials. But it later cancelled the event.

Still, North Korea has said it "remains unchanged in its stand and will to cherish and implement in good faith" the Singapore statement, which included vague promises to improve relations and eventually pursue the denuclearisation of the Korean peninsula.

A third summit between Trump and Kim was possible but the ball was in Pyongyang's court, White House national security adviser John Bolton said on Tuesday.

Bolton said the United States was continuing its "maximum pressure campaign" because Kim still appeared not to have made "a strategic decision to give up the pursuit of deliverable nuclear weapons."

In a briefing on Monday, U.S. State Department spokeswoman Morgan Ortagus said North Korea is "one of the toughest national security challenges" but that U.S. officials are working "diligently" to follow up on North Korea's promise to denuclearise.

"There´s always ups and downs, and we remain confident that Kim Jong Un and his government will see a path for a brighter future for the North Korean people," she told reporters.

"And one year later, that´s what we are still aspiring to and still hoping for while noting, of course, that economic sanctions do remain."

Those sanctions remain a key sticking point, with North Korea calling them illegal after the United States announced it had seized a North Korean cargo ship accused of illicit coal shipments in violation of sanctions.

This month, acting U.S. Secretary of Defense Patrick Shanahan gave Chinese Defense Minister Wei Fenghe a 32-page book of photographs and satellite images showing North Korean ships evading sanctions of China's coasts, in a bid to secure more sanctions enforcement by Beijing.

In May, Kim oversaw the test launch of new, short-range missiles while giving a cold shoulder to projects planned with South Korea.

The North's leader has maintained his efforts to build diplomatic ties with other countries, meeting Russian President Vladimir Putin in April.

Kim sent Putin a congratulatory message on Wednesday saying he believed that "the common understanding and agreements made at our first significant meeting will bear rich fruits". (Reporting by Josh Smith. Additional reporting by Aradhana Aravindan in Singapore Editing by Robert Birsel) </s> WASHINGTON: US President Donald Trump cosied up anew to North Korean leader Kim Jong Un on Tuesday (Jun 11), praising a "beautiful" letter he received from Kim and appearing to take a public stance against the CIA spying on him.

Trump told reporters at the White House, "I think that something will happen that's going to be very positive," but gave no details.

Washington is seeking to rebuild momentum in stalled talks with Pyongyang, aimed at getting North Korea to dismantle its nuclear weapons programme. Trump and Kim last met early this year in Hanoi but failed to reach a denuclearisation agreement.

Trump spoke a day after the Wall Street Journal reported that Kim's slain half-brother, Kim Jong Nam, was a source for the US Central Intelligence Agency. Kim Jong Nam was killed at the airport in Kuala Lumpur, Malaysia, in 2017.

"I did receive a beautiful letter from Kim Jong Un ... I appreciated the letter," Trump said. "I saw the information about the CIA with respect to his brother, or half-brother. And I would tell him that would not happen under my auspices."

Trump, who has described previous correspondence from Kim as "beautiful letters," said the most recent one was a "very warm, very nice letter." He repeated that he believes North Korea has "tremendous potential."

After exchanging insults and war-like rhetoric with Kim early in his presidency, Trump in the past year has repeatedly praised him. They have held two summits as Trump tries to convert what he feels is a warm personal relationship into a diplomatic breakthrough.

Trump did not rule out another meeting with Kim. He is due to travel to Japan and South Korea later this month.

Trump said Kim had thus far kept his promises not to test long-range ballistic missiles or conduct underground nuclear tests.

"He's kept his word to me. That's very important," said Trump.

In May, North Korea conducted a "strike drill" for multiple launchers, firing tactical guided weapons in a military drill supervised by Kim.

Trump said at the time that those launches did not pose a problem in his eyes, although his advisers called them a violation of UN Security Council resolutions. </s> WASHINGTON: A third summit between President Donald Trump and North Korean leader Kim Jong Un is possible but the ball is in Pyongyang's court, White House national security adviser John Bolton said on Tuesday (Jun 11).

While North Korea had kept pledges not to conduct nuclear or intercontinental range ballistic missile tests, Bolton said the United States was continuing its "maximum pressure campaign" because Kim still appeared not to have made "a strategic decision to give up the pursuit of deliverable nuclear weapons."

Bolton, speaking at a conference hosted by the Wall Street Journal, said it was "entirely possible" there could be a third Trump-Kim summit following their earlier meetings in Singapore and Vietnam. "Kim Jong Un holds the key," he said.

"We are ready when they are, so it’s - any time that they want to schedule it," Bolton said.

Trump and Kim's most recent meeting, in Hanoi in February, failed to result in a deal because of conflicts over U.S. calls for Pyongyang's complete denuclearisation and North Korean demands for sanctions relief. Since then, diplomatic efforts have stalled since, there are no signs of plans for a new meeting and North Korea conducted short-range missile tests last month.

Earlier, North Korean state media called on Washington on Tuesday to "withdraw its hostile policy" toward Pyongyang or agreements made at the first Trump-Kim meeting in Singapore a year ago might become "a blank sheet of paper."

Before their meetings, Trump and Kim exchanged insulting rhetoric but since then Trump has said they "fell in love." </s> US President Donald Trump says he has received a warm letter from North Korean leader Kim Jong-un, calling the correspondence “beautiful”.

“I think that something will happen that’s going to be very positive,” he told reporters at the White House, but gave no details. Washington is seeking to rebuild momentum in stalled talks with Pyongyang aimed at getting North Korea to dismantle its nuclear weapons program. Mr Trump and Kim last met early this year in Hanoi but failed to reach a denuclearisation agreement.

Mr Trump spoke a day after the Wall Street Journal reported that Kim’s slain half-brother, Kim Jong-nam, was a source for the US Central Intelligence Agency.

Kim Jong-nam was killed at the airport in Kuala Lumpur, Malaysia in 2017. “I did receive a beautiful letter from Kim Jong-un … I appreciated the letter. I saw the information about CIA with respect to his brother, or half-brother. And I will tell him that will not happen under my … I wouldn’t let that happen.

“A very warm, very nice letter,” Mr Trump said. “I think North Korea has tremendous potential.”

MORE: Strange North Korean town no one visits

He did not rule out another meeting soon with Kim. Mr Trump is due to travel to Japan and South Korea later this month.

Mr Trump said Kim had thus far kept his promises not to test long-range ballistic missiles or conduct underground nuclear tests.

In May, North Korea conducted a “strike drill” for multiple launchers, firing tactical guided weapons in a military drill supervised by Kim.

Mr Trump said at the time that these launches did not pose a problem in his eyes, although his advisers called them a violation of UN Security Council resolutions. </s> US President Donald Trump said Saturday that North Korean leader Kim Jong Un wants to resume denuclearization talks after US-South Korean war games end.

Trump tweeted that in a letter to him, Kim apologized for a recent spate of missile tests, the latest of which came at daybreak Saturday Korean time, and said they were to protest these joint military drills.

Trump said he looks “forward to seeing Kim Jong Un in the not too distant future!”

“In a letter to me sent by Kim Jong Un, he stated, very nicely, that he would like to meet and start negotiations as soon as the joint U.S./South Korea joint exercise are over,” Trump wrote.

The exercises began Monday and are due to last another week. North Korea has said the recent short-range missile tests are designed to protest the war games.

On Saturday, Trump again seemed to side with Kim by criticizing the exercises, which are a cornerstone of US-South Korean military cooperation.

“It was a long letter, much of it complaining about the ridiculous and expensive exercises. It was also a small apology for testing the short range missiles, and that this testing would stop when the exercises end,” Trump said.

Trump has appeared determined to secure a denuclearization agreement with North Korea ahead of next year’s US presidential elections, despite faltering talks since he first met Kim in a historic ice-breaking summit in Singapore in June 2018.

Even after their abortive second summit in February, Trump has been reluctant to criticize the North Korean leader.

Trump has repeatedly talked up his close personal relationship with Kim, as his administration seeks to resume the stalled denuclearisation talks with the North.

On Friday he described the message he got from Kim as “a very beautiful letter.”

In June he offered an olive branch by meeting Kim in the Panmunjon truce village in the Korean Demilitarized Zone, becoming the first sitting US president ever to step inside the North.

On Friday, Trump said the missile launches were not important.

“I’ll say it again. There have been no nuclear tests. The missile tests have all been short-range. No ballistic missile tests, no long-range missiles,” Trump said.

Defence officials in Seoul said what appeared to be two short-range ballistic missiles were fired at daybreak Saturday from near the northeastern city of Hamhung, flying 400 kilometres (250 miles) before splashing down in the sea between the Korean peninsula and Japan.

Washington and Seoul pledged in March to scale down their joint drills in an effort to foster denuclearisation talks with Pyongyang.

In contrast to Trump’s dismissal of the missile launches, others in the US administration have voiced opposition to them.

After Pyongyang’s fourth launch early this week, Secretary of State Mike Pompeo said Washington was ready to resume talks, but that the target of the “full, final denuclearisation of North Korea” had not changed.

A senior State Department official who refused to be named told journalists last week that the missile tests were an impediment to peace.

“The missile launches, any kind of provocations, are not helpful to advancing the cause of diplomacy,” the official said. </s> Washington DC [USA], Jun 12 (ANI): US President Donald Trump on Tuesday said that he received a "very beautiful" and "very warm" letter from North Korean leader Kim Jong-un amid the stalled nuclearisation">denuclearisation negotiations between the two countries.

Calling the letter "very nice", Trump again highlighted his personal relationship with Kim and exuded confidence that an agreement could be eventually reached between the two sides.

"We have a very good relationship together," The Hill quoted Trump as saying while speaking to reporters at the White House.

The US President said that a third meeting with Kim could take place and said that Kim had "kept his word" and "that's very important to me."

Trump is set to attend the G-20 summit in Japan later this month and is scheduled to meet South Korean President Moon Jae-in.

Talks between the two countries hit a roadblock after the second summit in Vietnam ended abruptly with no joint statement being released. The two sides reportedly failed to resolve their differences on sanction waivers.

No signs of thaw can be seen as yet, especially after North Korea tested multiple short-range missiles last month as a sign of their apparent frustration over the stalled negotiations and continuing sanctions.

Pyongyang has repeatedly insisted that the removal of penalties will help spur economic growth, whereas Washington has reaffirmed that sanctions will not be removed till the communist country completely stopped its nuclear weapons programme. (ANI) </s> On the eve of the first anniversary of his precedent-shattering summit in Singapore with Kim Jong-un, President Trump heaped fresh praise on the North Korean leader Tuesday even as critics, including some conservatives, complained that Pyongyang had made no real progress on denuclearization over the past year despite Mr. Trump’s intense personal diplomacy.

Fiercely protective of his administration’s signature foreign policy initiative, Mr. Trump rejected suggestions of applying more pressure on Pyongyang. He revealed to reporters that he had received a “beautiful” letter from Mr. Kim a day earlier and suggested a renewal of the stalled talks with the North Korean leader is in the works.

“I can’t show you the letter, obviously, but it was a very personal, very warm, very nice letter,” Mr. Trump said.

Asked about a Wall Street Journal report that Mr. Kim’s assassinated half brother may have been providing information to U.S. intelligence agencies, Mr. Trump said he never would have authorized recruiting family members of Mr. Kim as assets to gather intelligence on the opaque North Korean regime. The newspaper reported that Kim Jong-nam was traveling to Malaysia to meet his CIA contact before he was assassinated at an airport there in 2017.

“I would never let that happen under my auspices,” the president said.

The anniversary of the one-day summit in Singapore — a second summit in Hanoi in February broke up abruptly with the two sides far apart on the future of the North’s nuclear and missile programs — has sparked a mini-industry of stocktaking. Mr. Trump noted again Tuesday that regional tensions are down sharply in East Asia and Mr. Kim has refrained from major weapons tests since the Singapore summit.

But skeptics say the North Korea crisis is following a long-familiar pattern in which Pyongyang seeks to ease its economic crisis while stringing along the U.S. and its allies with denuclearization promises that never materialize.

“While there was much hope that Singapore would deliver results, it has, thus far, failed to do so,” Heritage Foundation Asia scholar Olivia Enos said Tuesday. “North Korea is no closer to denuclearizing than it was prior to Singapore, and human rights conditions in North Korea continue to deteriorate.”

Bruce Klingner, a former CIA Korea deputy division chief, added that “denuclearization negotiations with North Korea are at an impasse” and that “Kim Jong-un has been no more willing to abandon his country’s arsenal than his father and grandfather were.”

Mr. Klingner, a Heritage Foundation senior fellow, said the Trump administration has fallen short with its “maximum pressure” campaign against North Korea.

“The Trump administration initially sanctioned more North Korean entities in its first 18 months in office than the Obama administration did in eight years,” Mr. Klingner said. “But like his predecessors, Trump has not fully enforced U.S. laws, including those protecting the U.S. financial system. For all its tough talk, the Trump administration’s ‘maximum pressure’ policy was never maximum.”

The administration rallied the U.N. Security Council to level the most extensive slate of economic sanctions to date against North Korea in 2017. Washington also has its own unilateral sanctions in place against certain North Korean economic sectors.

U.S. officials last month announced the seizure of a North Korean ship accused of smuggling coal and heavy machinery in defiance of sanctions. Although officials noted in court documents that Indonesian authorities seized the ship in April 2018, many saw the move as a signal from the Trump administration that it could enforce sanctions more aggressively.

The ship seizure was revealed after North Korea carried out a wave of short-range missile tests. Pyongyang refrained from such tests during a period of diplomacy with Washington.

After the failed summit in February, Mr. Trump said he had to walk away because the North Koreans demanded sweeping sanctions relief in exchange for only a limited commitment to destroy part of their nuclear arsenal. Pyongyang later challenged that characterization.

Since Hanoi, the North Korean regime has resumed its heated rhetoric against U.S. policy and against many of Mr. Trump’s top aides while carefully refraining from attacks on Mr. Trump himself. In mid-April, Mr. Kim set a Dec. 31 deadline for the Trump administration to make a “bold decision” to change its negotiating stance if it wants a deal.

“We don’t like — and we are not interested in — the United States’ way of dialogue … in which it tries to unilaterally push through its demands,” Mr. Kim said in the speech. “We don’t welcome — and we have no intention of repeating — the kind of summit meeting like the one held in Hanoi.”

North Korean state media appeared to reiterate the statement last week with a message from the Ministry of Foreign Affairs in Pyongyang that said “there is a limit to our patience.”

However, the message carried by the regime-controlled Korean Central News Agency also projected positive language about the Singapore summit. It referred to the meeting as a “momentous occasion of great significance in promoting peace and stability on the Korean Peninsula.”

North Korean press outlets repeatedly argue that it is the U.S. that has failed to live up to the commitments in the original Singapore declaration, which hinted at security guarantees for the North and a possible formal end to the Korean War of the early 1950s.

White House officials declined to comment further on the subsequent letter that Mr. Trump claimed to have received this week from Mr. Kim. The letter would mark the first direct communication between the U.S. and North Korean leaders since their summit in Hanoi broke down three months ago without a deal.

“We have a very good relationship together. Now I can confirm it because of the letter I got yesterday,” Mr. Trump told reporters. “And, I think that, you know, I think that something will happen that’s going to be very positive.”

The president went on to tout signs of progress with North Korea despite its short-range missile tests.

“No nuclear testing, no major missile testing. Nothing like when I first got here,” Mr. Trump said as he left the White House en route to Iowa. “When I first got here, it was a bad mess.”

The president also touted North Korea’s return over the past year of American hostages and the remains of U.S. soldiers who perished in the Korean War. But the North has provided no remains after a set of 55 was turned over to the U.S. military a month after the Singapore summit. The Pentagon announced last month that it had halted talks on joint searches inside North Korea because of the diplomatic stalemate.

Mr. Trump and South Korean President Moon Jae-in are suggesting that a third Trump-Kim summit may be in the works, with the lure of economic aid too great for Mr. Kim to resist indefinitely.

“I think that North Korea has tremendous potential,” Mr. Trump said. “The one that feels that more than anyone is Kim Jong-un. He gets it.”

Mr. Trump is set to meet with Mr. Moon in Seoul this month to discuss the next steps on North Korea after a visit to Osaka, Japan, for the Group of 20 summit.

Secretary of State Mike Pompeo, meanwhile, brushed aside North Korea’s recent demands in an interview with The Washington Times, saying the Trump administration remains open to talks but that denuclearization is a non-negotiable end goal.

“I hope we get another opportunity to sit down with them and have a serious conversation,” Mr. Pompeo said in the interview last week.

The secretary of state stressed that it was Mr. Kim who agreed to give up his nuclear arsenal at the Singapore summit a year ago.

“They need to do what Chairman Kim said that they would do,” he said. “That’s been our posture since the beginning. We’re happy to talk about the best way to achieve that. We’re happy to talk about what the right tools and mechanisms are so we can facilitate that.”

But some national security analysts say the two sides have wide differences on what “complete denuclearization” would entail. Some argue that the North Koreans, as the price for giving up their nuclear arsenal, want the removal of the U.S. defensive nuclear umbrella from all of East Asia as well.

David Maxwell, a retired Army Special Forces colonel and a North Korea analyst with the Foundation for Defense of Democracies think tank, said “the U.S. has been clear that it is ready to talk.”

“Kim is the one who has not allowed substantive working-level talks since the Singapore summit,” Mr. Maxwell said recently.

There should be no third summit with North Korea “unless working-level negotiations produce some kind of substantive agreement,” he added.

“We should not expect any substantive positive action from the North because Kim is still trying to recover from his failure at Hanoi,” Mr. Maxwell said, arguing that the best way forward for the Trump administration is to “sustain maximum pressure” against Pyongyang. </s> President Donald Trump said on Tuesday that he has received another “beautiful letter” from Kim Jong Un and expressed openness to holding a third summit with the North Korean leader.

Indicating that he continues to trust Kim, despite making little progress in efforts to get Pyongyang to give up nuclear weapons, Trump said the North Korean strongman “has kept his word.”

“That’s very important to me,” he said at the White House.

Trump did not divulge what was in the letter from Kim. He has described previous letters as “beautiful” and even said that he and the leader of one of the world’s most repressive countries “fell in love.”

Trump has made history by meeting twice with Kim in a bid to lure North Korea into giving up nuclear weapons. However, US intelligence officials say Pyongyang has no intention of following through.

Despite widespread perceptions that the last summit, held in Hanoi in February, was a failure, Trump said he would be open to an eventual third meeting.

“It could happen but I want to bring it further down the line,” Trump said.

White House national security adviser John Bolton is also backing a new summit.

“We’re ready when they are,” he told The Wall Street Journal on Tuesday.
U.S. President Donald Trump says he received a "beautiful", "very warm and very nice" letter from North Korean leader Kim Jong-un. He added that Kim is "keeping his word" and not testing any kind of missiles. Earlier at a speaking event in Washington, National Security Adviser John Bolton said North Korea is not complying with the terms agreed upon during Trump's first summit with Kim in Singapore last year.