In a public rebuke of his Secretary of State on Sunday, U.S. President Donald Trump told Rex Tillerson “save your energy,” and that dialogue with North Korea was not worthwhile.

Describing Kim Jong Un as “Little Rocket Man,” the President also said that he would succeed where his predecessors had failed.

“I told Rex Tillerson, our wonderful Secretary of State, that he is wasting his time trying to negotiate with Little Rocket Man,” Trump said. “…Save your energy Rex, we’ll do what has to be done!”

No indication is given regarding precisely what the President means, though he has frequently