"I think North Korea is going to go very well, I think we will have tremendous success. I think this is going to be something very successful. We have a lot of support," Trump told reporters before boarding his Marine One helicopter to travel to a rally in Pennsylvania.

"So I think North Korea is going to go very well. The promise is they wouldn't be shooting off missiles in the meantime, and they're looking to de-nuke. So that'd be great."