Senate Foreign Relations Chairman Bob Corker told reporters that the summit cancellation is "a little bit of setback."

He added that Secretary of State Pompeo was "realistic" that the North Korea meeting may not happen. He refused to say whether Trump was too optimistic and talked too glowingly about Kim and wouldn’t criticize Vice President Pence’s remarks about North Korea.

"There was a sense it was going to happen — no question ... It’s been difficult to communicate with them" as of late, he said.

He added that North Korea was “not quite ready” to have the meeting.