The former top White House economic adviser said that President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE’s trade wars have had a “dramatic impact” on the U.S. manufacturing sector while doing little to hinder China’s economy.

Gary Cohn Gary David CohnGary Cohn: 'I haven't made up my mind' on vote for president in November Kushner says 'Alice in Wonderland' describes Trump presidency: Woodward book Former national economic council director: I agree with 50 percent of House Democrats' HEROES Act MORE, former director of the National Economic Council, told the BBC in an interview aired Thursday that Trump’s tariffs have effectively canceled the benefits of his 2017 corporate tax cut and prevented U.S. manufacturers from expansion.

"When you build plant equipment, you're buying steel, you're buying aluminum, you're buying imported products and then we put tariffs on those, so literally the tax incentive we gave you with one hand was taken away with the other hand,” Cohn told the BBC. ADVERTISEMENT

"So we are not seeing the manufacturing job creation. And I think if we get through this tariff situation, there's a real opportunity to see it here in the United States."

Cohn, a staunch free-trade advocate, announced his resignation in March 2018 after Trump imposed tariffs on imported steel and aluminum. The former Goldman Sachs president and registered Democrat clashed frequently on trade with Trump and his hardline protectionist advisers.

"I think everyone loses in a trade war. We are an 80 percent service economy. The service side of the economy is doing very well, because, guess what, it's not being tariffed,” Cohn said.

Since Cohn’s departure, Trump has imposed tariffs on $250 billion in goods from China, has floated another tranche on roughly $300 billion in Chinese products and is considering import taxes on foreign autos. Trump also threatened to tariff all Mexican goods over immigration concerns, but has stood down from that threat.

Trump has argued that the U.S. is benefiting from his tariffs through taxes taken in by the Treasury Department, which are being paid by U.S. importers and consumers. The president also attributes a sharp slowdown in China to his trade policy.

While the yearlong trade war has hindered China’s economy in some ways, Cohn said that the country was due for a slowdown regardless of Trump’s tariffs.

"I think the Chinese economy was going to slow down with or without a trade war," Cohn said, ceding that Trump was right to target the country’s alleged theft of intellectual property.

Cohn’s comments come a day after his former colleagues, Treasury Secretary Steven Mnuchin Steven Terner MnuchinOn The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline Vulnerable Democrats tell Pelosi COVID-19 compromise 'essential' Pelosi asks panels to draft new COVID-19 relief measure MORE and U.S. Trade Representative Robert Lighthizer Robert (Bob) Emmet LighthizerWhiskey, workers and friends caught in the trade dispute crossfire GOP senator warns quick vote on new NAFTA would be 'huge mistake' Pelosi casts doubt on USMCA deal in 2019 MORE, concluded a round of trade talks with Chinese officials in Shanghai. Negotiations are set to resume in Washington in September.