The public got a bit of a reprieve from Trump's typical Twitter temper tantrums while he was meeting with North Korean dictator Kim Jong Un. However, now that he's headed back to the White House, he's back on social media railing against De Niro.
"Robert De Niro, a very Low IQ individual, has received to [sic] many shots to the head by real boxers in movies. I watched him last night and truly believe he may be 'punch-drunk,'" the President tweeted.
Trump is referring to De Niro's remarks during the Tony Awards on Sunday night when he delivered an expletive-laden rant about Trump.
"First, I wanna say, 'F**k Trump,'" De Niro said to the crowd. "It's no longer 'Down with Trump,' it's 'F**k Trump.'"
The president, who's evidently catching up on what he missed while at the summit, just saw the viral De Niro moment and immediately went on the attack.
After calling the Oscar winner stupid, Trump took the opportunity to pat himself on the back for the state of the economy and even managed to assign De Niro a nickname: Punchy.