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The United State’s highest court struck down some of US President Donald Trump’s most sweeping tariffs on Friday, in a 6-3 decision that he overstepped his authority when using an emergency powers law to justify new taxes on goods from nearly every country in the world.

Trump has launched a barrage of new tariffs over the last year. Despite Friday’s ruling, many sectoral levies remain in place – and the president has already said that he’ll turn to other options for more import taxes, including plans to impose a new 10% tariff globally. But the Supreme Court decision upends a core set of tariffs that Trump rolled out using the 1977 International Emergency Economic Powers Act, or IEEPA.

IEEPA authorises the president to broadly regulate commerce after declaring a national emergency. Over the years, presidents have turned to this law dozens of times, often to place sanctions on other countries. But Trump was the first to use it to implement tariffs. Here’s a look at the now-overturned tariffs Trump imposed using IEEPA – and other levies that still stand today.

‘Liberation Day’ tariffs

Trump used IEEPA to slap import taxes on nearly every country in the world last spring. On April 2, which Trump called Liberation Day, he imposed “reciprocal” tariffs of up to 50% on goods from dozens of countries – and a baseline 10% tariff on just about everyone else.

The 10% tax kicked in early April. But the bulk of Liberation Day’s higher levies got delayed by several months, and many rates were revised over time (in some........

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