But when Pompeo arrived in Pyongyang, the North Koreans insisted they were still not ready to commit to specific plans, according to diplomats familiar with the discussions.
But North Korea's strategy of deliberately keeping Tokyo at arm's length has been particularly apparent over the past several months, as Kim has held summits with China, South Korea and the United States.
"Mr. President, North Korea is playing the same old game with you they've played with every other president", Graham said on Face the Nation.
Trump tweets: "A Rocket has not been launched by North Korea in 9 months". The Japanese leader could meet Kim at an eastern Russian Federation development forum in Vladivostok in September, where Kim and Putin may hold their summit.
"It will take full enforcement of sanctions for us to get there, it will also take chairman Kim following through on his personal commitments that he made to President Trump in Singapore", stated Pompeo.
Pyongyang for decades has been pushing a concept of "denuclearization" that bears no resemblance to the American definition, vowing to pursue nuclear development unless Washington removes its 28,500 troops from South Korea and the nuclear umbrella defending South Korea and Japan.
King said the Singapore summit was a "major boost for Kim's legitimacy", at a time in North Korea when "questions about Kim's legitimacy.and how his family came to power" are quietly being raised among ordinary people.
Brooks said the challenge now is to continue to make progress with North Korea, and said that the level of diplomacy is high with abundant channels of communication now open on the Korean peninsula.
"This could (and that's a big could) mean that North Korea is also willing to forgo satellite launches for the time being as well as nuclear and missile tests". Since earlier this year, they have significantly cut back on negative commentaries directed at U.S. President Donald Trump and South Korean President Moon Jae-in, presumably to avoid souring the North's ongoing diplomatic outreach toward both countries.
Pyongyang also committed to returning the remains of United States soldiers killed during the Korean War. We have - we're just going through the process.
Critics of the Singapore deal claim the document lacks specifics and does not tie North Korea to a firm timetable on denuclearization or giving up its current nuclear weapons.
Dutch Ambassador Karel Van Oosterom said the Security Council made clear to Pompeo that it wants to see "concrete actions and deeds" from North Korea to denuclearize.
Meari, another propaganda website run by Pyongyang, urged Seoul to do "its part" to formally end the war.