In a tense battle on Fox News Wednesday, Cavuto grilled Kudlow over what Cavuto believes is the beginnings of a trade war with China — amid proposed tariffs from Trump.

“I hope you are to avoid that kind of thing,” Cavuto said of the tariffs. “But this doesn’t sounds like the laissez-faire, hands off Larry Kudlow I’ve respected and admired all these decades.”

Kudlow fired back, saying that some form of intervention is necessary at this moment.

“I have been an opponent of China for many years, as a free-trader,” Kudlow said. “Because they’re closing markets, they’re closing investment. They’re not playing by the rules of the game. And so what are we supposed to do? We have to react.”