US Vice-President Mike Pence has warned North Korea’s Kim Jong-un not to “play” President Donald Trump if they meet next month.
Mr Pence said in a interview that such a move would be a “great mistake” by the North Korean leader.
Mr Pence also said there was “no question” that Mr Trump could walk away from the 12 June summit.
North Korea has threatened to pull out of the meeting after comments by US National Security Adviser John Bolton.
The country reacted furiously when Mr Bolton suggested it would follow a “Libya model” of denuclearisation.
Mr Pence said that Mr Trump would be willing to walk away from the planned Singapore meeting.
“I don’t think President Trump is thinking about public relations, he’s thinking about peace,” the vice-president said.