WATCH: Trump's economic guru snaps at Fox News host for citing Wall Street Journal’s trade plan criticism
Fox News' Sandra Smith and Peter Navarro

Assistant to the President Peter Navarro on Friday snapped at Fox News host Sandra Smith after she pointed out Donald Trump’s hastily-announced trade plan is receiving significant criticism from the Wall Street Journal, which has historically been sympathetic to this administration.

Trump on Thursday announced a 25 percent tarrif on imported steel and 10 percent tariff on aluminum, a move the Wall Street Journal called “the biggest policy blunder of his presidency.”

Smith asked for Navarro’s response to Trump “taking a lot of heat for” the announcement.

“What is your response to the market?” Smith asked. “The markets, they don't like this at all. Looking at another big sell-off in our U.S. stock market today.”

“We will take the heat, but let's put a little light on the subject here,” Navarro replied, arguing Trump’s “economic policies have resulted in the biggest economic boom that we have seen in decades.”

“You are hearing the auto manufacturers, boat manufacturers, people who use these commodities, they are saying this is going to raise our prices, and as a result, it is going to raise prices at the end of the day to the consumer,” Smith hit back. “It is going to hurt their industries … the editorial board of the Wall Street Journal does not like this. The market does not like it. They write Donald Trump made the biggest policy blunder of his presidency.”

“Do you want to push back, or are you just going to read that editorial?” Navarro demanded. ”Let me ask you a question. If you put a 10 percent tariff on aluminum, how much do you think that increase will impact a six-pack of beer?”

“I don't know, you tell me,” Smith replied.

“One cent,” Navarro insisted.

Smith asked the top Trump adviser why “the auto manufacturers are they getting it so wrong?”

“Look, they don't like this, of course they don’t,” Navarro said. “What do they do? They spin, they put out fake news, they put all this hyperbole out.”

Watch below, via Fox News: