A day after the US Supreme Court ruled that Donald Trump's tariff blitz had been largely illegal, Trump fired back with another hike on import levies.

In a post on Truth Social, Trump said the increase would take effect immediately and argued that many countries had been ripping off the United States for decades.

The US Supreme Court's ruling invalidated a number of tariffs that the Trump administration had imposed on Asian export powerhouses from China and South Korea to Japan and Taiwan.

President Trump is moving forward with an alternative tariff plan after the Supreme Court ruled against the president’s authority to impose global tariffs enacted under an emergency powers law.

The decision followed the Court’s determination that the International Emergency Economic Powers Act (IEEPA) does not grant the president the authority to impose tariffs.

The US Supreme Court issued a 6-3 decision on February 20, striking down most of President Donald Trump's sweeping tariffs imposed under the International Emergency Economic Powers Act (IEEPA) of 1977. 

Trump pulled his endorsement of Rep. Jeff Hurd after the Colorado Republican cited Congress’ constitutional authority over trade policy amid a tariff dispute.

President Donald Trump imposed Friday an additional 10 percent tariff on imports into the United States after the Supreme Court struck down many of his sweeping and often arbitrary duties, delivering a stinging rebuke on his signature economic policy.

The US Supreme Court on Friday ruled Donald Trump's sweeping global tariffs illegal - a stunning rebuke of the president's signature economic policy that upended international trade