(CNN) As President Donald Trump hails "progress being made," a source familiar with details of the high-profile visit of North Korea's top negotiator this month says those discussions -- at both the State Department level and with the White House -- "got nowhere" on denuclearization. A second source agreed with that assessment.

"North Korea relationship is best it has ever been with U.S. No testing, getting remains, hostages returned. Decent chance of Denuclearization," Trump tweeted Wednesday morning. "Time will tell what will happen with North Korea, but at the end of the previous administration, relationship was horrendous and very bad things were about to happen. Now a whole different story. I look forward to seeing Kim Jong Un shortly. Progress being made-big difference!"

The President made his declaration a day after Director of National Intelligence Dan Coats told members of Congress that North Korea "is unlikely to completely give up its nuclear weapons." His assertion of progress also comes less than two weeks after the White House and State Department held talks with North Korean envoy Kim Yong Chol.

One source familiar with those talks said that the discussions focused entirely on the planning of the next summit between Trump and Kim Jong Un, with the North Korean leader still refusing to yield anything until he gets a major commitment from the Americans, namely a peace agreement to formally end the Korean War.

The White House announced the summit, which they said would take place "near the end of February," after Trump met with Kim Yong Chol for nearly an hour and a half in the Oval Office. White House press secretary Sarah Sanders said at the time that denuclearization had come up in that meeting.

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