Trump says he will stop trade with certain countries if the Fed doesn't lower interest rates

President Trump warned that the Federal Reserve must lower interest rates or else he will cut off trade with countries that sell a ton of goods to the U.S. but don’t buy as much from American producers.

Mr. Trump tied trade deficits with other countries, a longtime fixation of his, with interest rates as the central bank gets skittish about stubborn inflation and leans toward a rate hike this month to tamp down prices.

The president said the Supreme Court ruling this year, which invalidated his use of a 1977 economic-powers law to impose tariffs, expressly granted him the ability to cut off trade instead.

“LOWER THE RATE OR I’LL STOP TRADING WITH COUNTRIES WITH WHICH WE HAVE A DEFICIT, which the U.S. Supreme Court, in its ridiculous and very costly Tariff decision, strongly acknowledged ‘the President’ has an absolute right to do. IT’S BETTER THAN TARIFFS!” Mr. Trump posted on social media. “The Fed Board, with its great new leader, must get smart — BE PATRIOTS for a change. High interest rates put the U.S.A. at a very unfair disadvantage, and I won’t allow that to happen!”

The threat to tie interest rates to trade deficits was unusual.

The U.S. runs trade deficits with leading partners, including Canada, Mexico and the European Union, so cutting off trade would be an extreme step.

Some economists say trade deficits are not inherently bad, since Americans may prefer overseas products or benefit from lower prices on those goods.

But Mr. Trump said there is only an upside to cutting off trade with countries that run a trade surplus against the U.S.

“If we didn’t trade wth them, we’d lose nothing,” Mr. Trump said, before using Mexico as an example. “They have nothing we have to have — I mean, hot tamales, tomatoes, a couple of things – but basically they have nothing that we need.”

Mr. Trump’s threat is a sign he is ramping up his pressure campaign on his handpicked Fed chairman, Kevin Warsh, ahead of the bank’s rate decision on Sept. 16.

CME FedWatch, a key forecaster, said Friday there is a 60% chance the Fed will decide on a 0.25 percentage point rate increase at the meeting.

Yearly inflation is running above 3%, while the Fed's preferred target is 2%. Mr. Warsh has pledged to usher in price stability.

Yet Mr. Trump believes the U.S. is a rich and productive country that should enjoy preferable borrowing rates to supercharge growth.

“EMPLOYERS ADDED 162,000 JOBS IN AUGUST. Lower the interest rates because the U.S.A. is a much stronger credit than it was just a short time ago!” he posted. “A STRONG COUNTRY MEANS A LOWER INTEREST RATE — IT’S A BETTER CREDIT. … Very simple!”

Markets were down on Friday as investors digested the news. In particular, investors are worried because the robust jobs report lets the Fed focus on high prices and lean toward a rate hike.

Mr. Trump, speaking in the Oval Office, said it is unfortunate that stocks go down when good job numbers are announced.

“Because of the stupidity of the way they think about inflation,” Mr. Trump said. “We have to change our ways.”

“The stock market should go up,” he said. “Success does not cause inflation.”