KEY POINTS
  • President Trump's tariff strategy "creates uncertainty with our trading partners," says a top official at the world's largest business lobbying group.
  • Myron Brilliant, head of international affairs at the U.S. Chamber of Commerce, contends that tariffs are the wrong approach with China and Mexico.
  • Reacting to Brillant's interview, Trump calls in to CNBC to argue his case for why tariffs are effective. He also blasts the Chamber of Commerce.

President Donald Trump is right to pressure China to change its protectionist trade and business practices, but he should not be using tariffs to do it, a top official at the world's largest business lobbying group said Monday.

Myron Brilliant, head of international affairs at the U.S. Chamber of Commerce, also told CNBC's "Squawk Box" that Trump should never have used the threat of tariffs to try to force Mexico to crack down on illegal immigration, especially with ratification of the new USMCA, the United States-Mexico-Canada Agreement, pending in Congress.