Since Trump's return to the White House, the United States and Canada have repeatedly teetered on the brink of a full-blown trade war, but Trump has ultimately managed to retract some of his harshest offensives against one of his closest allies. However, this relative calm ended on Saturday. The U.S. imposed a 50% tariff, which officially took effect, and Canada threatened reciprocal countermeasures. Trump's tariffs are essentially taxes on imported goods, meaning that a portion of the cost of the latest tariffs could ultimately be borne by U.S. importers who have been suffering from high prices for years. If Trump retaliates after Canada does so, it could create a series of new shocks to the U.S. economy, which is already facing numerous challenges.
"The bigger problem is uncertainty," said Scott Lincicome, vice president of macroeconomics at the Cato Institute. This volatility has permeated Trump's second term. His constantly changing tariffs, sometimes even with a single order, have not only disrupted Wall Street, angered courts, and provoked U.S. allies, but have also fueled rising domestic consumer prices. Lincicome said a new round of conflict against Canada could put significant pressure on businesses operating along the U.S.-Canada border. Retaliatory tariffs could push up prices, which in turn would mean "a slight decrease in investment and a slight slowdown in economic activity," and this chaotic trade environment will likely persist. Joe Brusuelas, chief economist at auditing and consulting firm RSM US, said he still believes an agreement is possible, but the risk of escalation is real and could be costly. He expects Canada to target the "worst spots," perhaps including the US auto industry. This could pose a risk to the inflation outlook amid a continued manufacturing slump.
A retaliatory trade war could further complicate the US's current struggle with inflation. Despite Trump's opposing view, US inflation remains well above the Federal Reserve's 2% target. In fact, rising prices prompted Trump to ease tariffs on beef imports this week, effectively acknowledging that his trade policies have hurt American wallets. These economic anxieties are also increasingly spreading to financial markets. The US's ever-increasing debt burden reached $40 trillion this week, triggering market concerns and pushing US Treasury yields up sharply. The war with Iran also presents economic challenges, pushing up fuel costs and dragging down global economic growth.