Last Updated Mar 28, 2018 7:10 PM EDT
WASHINGTON -- President Trump got word of abetween the leaders of just a few hours before it was made public. On Wednesday, Mr. Trump seemed for himself.
"We're going to be cautiously optimistic ... we want to make sure that it's done as soon as we can, but we also want to make sure it's don't properly and we're working toward that goal," White House press secretary Sarah Huckabee Sanders said.
The renewed optimism came after Kim made afor his first meeting with Chinese President Xi Jinping. It was his first trip outside North Korea since coming to power nearly seven years ago.
He used the appearance to publicly confirm he is willing to hold a summit with Mr. Trump and, according to Chinese media, vaguely committed to.
China's ambassador carried a personal message from Xi to the White House on Tuesday with details of Kim's offer. His Beijing visit seems to have repaired, which had been damaged by China's support for sanctions on North Korea's accelerating nuclear program.
"Now he looks like a leader of a normal country. It legitimizes him," former CIA analyst Su Mi Terry said.
On Wednesday, Mr. Trump predicted on Twitter that there is a "good chance that Kim Jong Un will do what is right for his people and for humanity. Look forward to our meeting!"
However, there are already signs that North Korea may not be acting in good faith.-- possibly for enriching plutonium -- coming online.
"Kim Jong Un can say to himself, 'I'm already established. I'm already a nuclear power. I already have 60 nuclear warheads ... I'm 90-95 percent done with my nuclear program. So I'm in a position of strength coming into this negotiation,'" Terry said.
While North Korea pledged to hold off on any tests, it continues to develop its nuclear program. The White House and U.S. intelligence -- led by CIA director, who has not yet been confirmed as secretary of state -- are laying the groundwork for the landmark summit.