President Trump tweets, 'why would Kim Jong-un insult me by calling me "old," when I would never call him

US President Trump throws another jab at the North Korean leader. Trump's jab seems to be his response to Jong Un referring to him as a "dotard" who "begged for nuclear war" during his tour of Asia and from North Korea's state-run media calling Trump a "lunatic old man." 

He also had some words for his 'haters'.