Watch Arnold Schwarzenegger's Savage Response to Trump Insulting Him at a Prayer Event

During the National Prayer Breakfast, an event attended by lawmakers, foreign dignitaries, and religious leaders, President Donald Trump talked about reality TV ratings — and insulted Arnold Schwarzenegger.

Trump mentioned that when he decided to run for president, television producer Mark Burnett replaced him with Arnold Schwarzenegger as the host of The Apprentice, a show for which Trump is currently an executive producer. (It should be noted that NBC released a statement in June 2015 saying that it cut ties with Trump after his campaign statements about Mexican people.) Of his replacement, Trump said he is unimpressed. "We know how that turned out. The ratings went right down the tubes. It has been a disaster," Trump said of the show. He then asked guests to "pray for Arnold . . . for those ratings."

Schwarzenegger responded to the statement on Twitter on Thursday in a video, saying, "Hey Donald, I have a great idea. Why don't we switch jobs? You take over TV, cause you're such an expert in ratings. And I take over your job, so that people can finally sleep comfortably again."

Trump has not reacted well to rivals in the past, and it's likely he won't let this feud go either.