On Saturday, U.S. President Donald Trump took to his social media platform, Truth Social, to announce an immediate increase in tariffs on imports from all countries, raising the rate from 10% to 15%. This decision comes in the wake of a Supreme Court ruling on Friday that declared previous global tariffs, imposed under the International Emergency Economic Powers Act (IEEPA) of 1977, as illegal. Trump has openly criticized the ruling, referring to it as disgraceful, and expressed his intent to counteract it by establishing new tariffs under Article 122 of U.S. trade law.

In his statement, Trump implied that the countries targeted by these tariffs have taken advantage of the U.S. economically for decades. By raising the tariff to 15%, he asserted that it would correct what he sees as long-standing injustices against American interests. This policy shift is not without controversy, as it potentially indicates a shift in the administration's trade strategy amidst ongoing tensions with various nations over trade practices and deficits.

The legality of the new tariffs remains a crucial issue. Section 122 of the Trade Act of 1974 allows the president to impose new tariffs up to 15% for a maximum of 150 days. The implications of Trump's announcement could lead to renewed debates in Congress regarding trade powers and might result in retaliation from other countries, complicating the already fragile international trade landscape.