Washington (CNN) House Speaker Nancy Pelosi argued on Thursday that Kim Jong Un was "a big winner" in the latest negotiations between President Donald Trump and the North Korean leader since he once again had the opportunity to "sit face to face" with the President of the United States, but she said that Trump did the right thing by ultimately walking away from the talks.

The President has been in Hanoi, Vietnam, for a summit that ended with no joint agreement between the US and North Korea after Kim insisted all US sanctions be lifted on his country.

"What we want is denuclearization," Pelosi said at her weekly news conference, referring to the US goal of getting North Korea to give up its nuclear weapons. "They didn't agree to it in the first meeting. They didn't agree to it in the second meeting. They wanted lifting sanctions without denuclearization. I'm glad that the President walked away from that."

Trump said that Kim offered to take some steps toward dismantling his nuclear arsenal, but not enough to warrant ending sanctions imposed on the country.

"Sometimes you have to walk," Trump said during a news conference following the conclusion of the summit, which broke up earlier than planned. "This was just one of those times."

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