During tonight's GOP debate, Donald Trump and Carly Fiorina engaged in a back-and-forth about their respective business careers, but Chris Christie said that the American people don't care.

"They could care less about your careers. They care about theirs," Christie said.

When Fiorina tried to interject, Christie silenced her.

"Carly, listen, you can interrupt everybody else on this stage. You're not interrupting me," he said.

He said it's great that Fiorina and Trump are successful people, but he's concerned with the American middle class that's getting plowed over by politicians like President Obama and Hillary Clinton.

"Let's start talking about those issues tonight and stop this childish back-and-forth between the two of you."

Watch more above, via CNN.

Tune in to Fox News Channel after the debate to see Bill O'Reilly, Megyn Kelly and Sean Hannity bring you three hours of live coverage, starting at 11p ET.

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