Trump says whatever he wants. The facts never seem to line up much...

"Mr. Trump then said on Twitter that there was no longer a nuclear threat from North Korea. But by this year, senior American officials, including Secretary of State Mike Pompeo and John R. Bolton, the national security adviser, were asserting the opposite — that the threat remained and that the North had done little to dismantle its nuclear program, despite Mr. Pompeo’s attempts at diplomacy. Mr. Pompeo attended the Wednesday dinner with Mr. Trump."