The president-elect decided to pick on The New Celebrity Apprentice host Arnold Schwarzenegger on Friday.

Trump called out Schwarzenegger for low ratings on the new season of the show — which premiered on Monday — and compared it to the time when he, "the ratings machine, DJT", hosted the show.

Note: Trump still appears in the credits as the show's executive producer.

BUT THEN...

ARNOLD WAS LIKE: "I'VE BEEN WAITING FOR YOU..."
And he went in on Trump, saying, "There's nothing more important than the people's work." (Are you reading this in his Terminator voice, like I am?)

Shots were fired.
Arnold did not hold back.

He even gave Trump some history homework.
Please study this quote from Lincoln's inaugural, @realDonaldTrump. It inspired me every day I was Governor, and I… https://t.co/iFDXcsRfEU
People really took advantage of this opportunity to use some choice Arnold Schwarzenegger GIFs.
@Schwarzenegger GOT 'EM.
@Schwarzenegger
2017 to 2016: "You're terminated."
@Schwarzenegger Arnie @ Donald