Trump: US Nuclear Button Bigger Than North Korea's

President Trump is firing back at  North Korea's leader after he said the nuclear button is on his desk.   On Twitter, Trump said that someone needs to tell Kim Jong Un that he too has a nuclear button, adding "it is a much bigger & more  powerful one than his, and my Button works."  Earlier, Trump said that  sanctions were having a "big impact" on North Korea.  He also referred  to Kim as "rocket man," again. 

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