President Donald Trump on Monday accused Argentina and Brazil of hurting American farmers through currency manipulation and said he'll slap tariffs on their steel and aluminum imports to retaliate.
Trump also called on America's central bank to take action to prevent other countries from devaluing their currencies.
Both South American nations were among a group of U.S. allies that Trump had exempted from steel and aluminum tariffs in March 2018.
Hours before he was set to depart Monday for a NATO conference in London, Trump tweeted that "Brazil and Argentina have been presiding over a massive devaluation of their currencies. which is not good for our farmers. Therefore, effective immediately, I will restore the Tariffs on all Steel & Aluminum that is shipped into the U.S. from those countries."
Argentina is mired in an economic crisis with rampant inflation, deep indebtedness, widespread poverty and a currency that has plunged under the leadership of President Mauricio Macri, who came to power in 2015 with promises to boost South America's second-largest economy. Macri was defeated in elections in October and will leave office next week.
Brazil is grappling with stubborn double-digit unemployment, and its economy is headed toward its third straight year of roughly 1% growth, following two years of deep recession.
Trump said the U.S. Federal Reserve "should likewise act so that countries, of which there are many, no longer take advantage of our strong dollar by further devaluing their currencies." Trump said such devaluation "makes it very hard for our manufactures & farmers to fairly export their goods.
"Lower Rates & Loosen - Fed!" he admonished the independent agency.
Trump has repeatedly assailed the Fed chairman, Jerome Powell, over his leadership and for not cutting interest rates as much as the Republican president would like.
At its most recent meeting, in October, the Federal Reserve cut short-term interest rates for a third time this year to try to support the U.S. economy. But it also signaled that it planned no further interest rate cuts absent clear evidence of a worsening U.S. economic outlook.
Trump's trade war with China hurt U.S. farmers after Beijing retaliated when the president imposed levies on hundreds of billions of dollars of Chinese-made goods. Trump falsely claims China is paying the U.S. billions and billions of dollars in tariffs.
He also has earmarked nearly $30 billion for farmers to help make up for their losses.
After a brief spike in steel prices, U.S. steel producers have struggled since the Trump administration put tariffs into place last year.
Domestic demand has slumped along with the energy sector as drillers pull back on purchases of steel pipe.
U.S. Steel in its last quarter reported its first loss since early 2017, and the division that makes pipes for energy companies lost $25 million. It has laid off workers and shut down some of its blast furnaces.
Shares of the Pittsburgh company are down 43% over the past year. Shares of AK Steel are down 10%, even as the S&P 500 sets record highs repeatedly.