Trump Vows to Keep Pressure on ‘Rocket Man’ Kim Jong Un, North Korea

U.S. President Donald Trump talks to the media about Hurricane Irma, next to First lady Melania Trump, on the South Lawn of the White House upon their return to Washington from Camp David on Sept. 10, 2017. REUTERS/Yuri Gripas

President Donald Trump has a new name for North Korean dictator Kim Jong Un: “Rocket Man.”

“I spoke with President Moon of South Korea last night. Asked him how Rocket Man is doing. Long gas lines forming in North Korea. Too bad!” he wrote on Twitter on Sunday morning.