Thursday's assembly meeting in Pyongyang was taking place ahead of South Korean President Moon Jae-in's meeting with Trump in Washington.
While, thanks to the communist system, the average North Korean citizen has endured extreme poverty for decades, the global sanctions placed on the country following its most recent illegal nuclear weapons test in 2017 have adversely affected the comfortable lives of the few Party leaders who have access to the nation's riches, triggering a sense of urgency in country's political elite. The two men occasionally exchange letters. Its mistake in Hanoi was to have set a frame of denuclearisation versus lifting of the sanctions.
Instead Wednesday's meeting could involve a reshuffle of party officials including Kim Yong Chol, the North's top envoy for talks with the USA, who has been "blamed the most for the failure of the Hanoi summit", he said.
"I believe North Korea has tremendous potential", Mr. Trump said.
Why did the Trump-Kim summit break down?
"I didn't think it was necessary", he said Thursday at the Oval Office.
"The important task that we face right now is to maintain the momentum of dialogue and also express the positive outlook regarding the third U.S".
Trump also voiced optimism about future meetings with North Korea.
"The two presidents agreed that the top-down approach will continue to be indispensable in the peace process on the Korean peninsula".
"If the time is right, [the United States] will support" the reopening, Trump said as Moon listened.
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The news was confirmed by White House Press Secretary Sarah Sanders in a statement. "I could not be happier with Secret Service". The Secret Service does not determine who is invited or welcome at Mar-a-Lago; this is the responsibility of the host entity.
Moon said it's important to maintain the "momentum of dialogue" and express a positive outlook to the global community that a "third U.S".
"With Kim's excessive emphasis on self-reliance, North Korea virtually acknowledged that its negotiating strategy was a failure".
U.S. Secretary of State Mike Pompeo told a congressional committee on Wednesday that he would like to leave "a little room" in the sanctions in case North Korea makes "substantial" progress toward giving up its nuclear weapons. That summit, at which Washington and Pyongyang had been widely expected to reach some kind of agreement, ended in a failure to reconcile North Korean demands for sanctions relief with US demands for Kim to give up his weapons of mass destruction.
"There are various smaller deals that maybe could happen, things could happen". Things could happen. You could work out, step-by-step, pieces. Yongbyon is a hub for enriching and processing nuclear material, much of which North Korea has used in weapons, and is believed to remain in operation long after Pyongyang claimed to have shut down its Punggye-ri Nuclear Test Site. But at this moment, we're talking about the big deal.
Kim underlined the need to "vigorously advance socialist construction" based on North Korea's own efforts, technology and resources, "under the uplifted banner of self-reliance, so as to deal a telling blow to the hostile forces who go with bloodshot eyes miscalculating that sanctions can bring the DPRK to its knees".
At a similar plenary session past year, Kim formally announced a "new strategic line" that focused on economic progress and improving North Koreans' lives, rather than the previous two-pronged approach of economic and nuclear weapons development.
Cheong Seong-chang, an analyst at the Sejong Institute, said it would be hard for Kim to lay out a new policy direction while Trump continues to express a willingness to maintain dialogue.
North Korean leader Kim Jong Un attends a plenary session of officials from the ruling Workers' Party of Korea on Wednesday.
Trump said he would favor easing those sanctions at the right time but added: "This isn't the right time".