The national prayer breakfast takes place each January as the president and fellow politicians gather together in religious unity. For Donald Trump, it was a time to highlight himself, while targeting the man who replaced him on "The Celebrity Apprentice," Arnold Schwarzenegger.

Trump on Arnold

Over the course of his entire campaign for president, Donald Trump would often be accused of being an egomaniac who spoke about himself ad nauseam. Despite the criticism, the billionaire real estate mogul was able to weather the storm of controversy and become the 45th President of the United States.

When Trump officially became a candidate for the job, he left a vacancy for a new host on "The Apprentice," or "The Celebrity Apprentice." In time, action movie star Arnold Schwarzenegger was tapped as his replacement, though the show has garnered less than stellar ratings. As reported on February 2, the new president used the National Prayer Breakfast to take a shot at his old show.

After touting his "tremendous success" as the former host of the show, Donald Trump then turned his attention to attacking Arnold Schwarzenegger.

"We know how that turned out. The ratings went right down the tubes," Trump said, while adding, "It's been a total disaster." "I want to just pray for Arnold if we can, for those ratings," he added.

Arnold responds

In response, the former governor of California responded to the attack with a video of his own. "Hey Donald, I have a great idea," Schwarzenegger said, while adding, "Why don't we switch jobs." "You take over TV since you are such an expert in ratings, and I'll take over your job so people can finally sleep comfortably again," he concluded.

War or words

The feud between Donald Trump and Arnold Schwarzenegger has been well publicized in recent weeks, after the commander in chief fired the first shot over the show's ratings last month. The star of "The Terminator" did respond, but appeared to play it easy by not going to hard on the new president.

However, after Trump signed his controversial "Muslim ban" executive order, Schwarzenegger spoke to "Extra" host Mario Lopez, and said the order in question made the United States look "stupid."

Next up

While it's unknown if Donald Trump will continue to be publicly critical of "The Apprentice" or Arnold Schwarzenegger in the future, it's likely considering his history. With less than two weeks into his presidency, Trump has created controversy that doesn't look to be ending anytime soon.