WATCH: Trump warns he’s winging it in nuclear negotiations with North Korea: ‘It’s about attitude’

President Donald Trump on Thursday admitted that he's not doing much to prepare for highly complex nuclear disarmament negotiations with North Korea.

When asked by a reporter what he's doing to prepare for the meeting with North Korean leader Kim Jong-un, which is set to take place in Singapore on June 12, Trump brushed off the importance of preparation.

"I think I'm very well prepared," he said. "I don’t think I have to prepare very much. It’s about attitude."

Watch the video below.