Global trade uncertainty grew after Donald Trump announced he would raise a universal U.S. import tariff from 10% to 15%, the highest level allowed under the law he plans to use.
The decision came shortly after the Supreme Court of the United States ruled that Trump had exceeded his authority when he imposed broader tariffs using an emergency powers law. The court’s decision forced the administration to quickly shift strategy.
Trump said the new tariff would rely on a different legal tool known as Section 122. This law allows the president to impose tariffs of up to 15% for a limited period, but it requires approval from United States Congress if the tariffs are to remain in place beyond 150 days. No previous president has used this provision, making the move legally uncertain.
In a social media post, Trump said the increase would take effect immediately and argued the tariffs were needed because many countries had taken advantage of the United States in trade for years. He also signaled that his administration would explore additional ways to impose tariffs that could survive legal challenges.
The ruling that blocked Trump’s earlier tariffs was written by Chief Justice John Roberts and supported by a majority of the court, including both conservative and liberal justices. The decision marked a significant check on presidential trade powers.
Trade experts say the new tariffs may face political resistance. Some lawmakers and analysts doubt Congress will extend them, especially as polls show many Americans link tariffs to higher consumer prices. With midterm elections approaching, economic concerns, particularly affordability, remain a major issue for voters.
The policy could affect global trading partners differently. Countries that negotiated separate trade agreements with the United States may still face higher rates, while others without deals could see tariffs fall to the temporary 15% level. Some foreign leaders welcomed the court ruling, saying it reinforces limits on executive power and could ease pressure on businesses.
For markets, the situation adds another layer of uncertainty. Investors, companies, and governments now face a shifting trade environment as legal battles, political negotiations, and economic pressures continue to shape U.S. tariff policy.
