Supreme Court Strikes Down Trump Tariffs, Sparking Constitutional Crisis

Ruling finds administration exceeded authority, but White House vows to rebuild barriers using other methods

Published on Mar. 8, 2026

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In a 6-3 decision, the U.S. Supreme Court struck down most of former President Donald Trump's recent tariffs as illegal, finding the administration exceeded its authority under the International Emergency Economic Powers Act (IEEPA). The ruling reinforces the principle that taxation and tariff powers rest with Congress, not the executive branch. However, the White House has signaled defiance, promising to rebuild tariff barriers using "methods, practices, statutes and authorities that are even stronger than the IEEPA tariffs." This sets up a deeper constitutional and economic crisis, with the potential for the executive branch to resist implementation of the court's ruling.

Why it matters

The Supreme Court's decision is part of a larger struggle over the balance of power between the executive, legislative, and judicial branches. It reaffirms that the president cannot unilaterally impose tariffs without congressional approval, challenging the theory of the unitary executive championed by some Republicans. However, the potential for the White House to defy the ruling raises concerns about the resilience of constitutional checks and balances, as the executive controls the machinery to execute court orders.

The details

The IEEPA tariffs, imposed after Trump declared a national emergency over the U.S. trade deficit, had generated an estimated $200 billion in import duties. Those funds must now be refunded, but repayment could take years of litigation. The administration is exploring other statutes, such as Section 122 of the 1974 Trade Act, that could allow temporary tariffs. There are also concerns the White House may simply delay dismantling the IEEPA tariffs, using prosecutorial discretion and presidential pardons to shield officials.

  • On April 2, 2025, Trump declared a national emergency and imposed the IEEPA tariffs.
  • On February 20, 2026, the Supreme Court issued its 6-3 ruling striking down most of the IEEPA tariffs.
  • On February 21, 2026, Trump announced a new 10% global tariff, raised to 15%, invoking other trade authorities.

The players

Donald Trump

Former U.S. President who imposed the IEEPA tariffs and is now vowing to rebuild trade barriers using other methods.

U.S. Supreme Court

The court issued a 6-3 ruling finding that the Trump administration exceeded its authority under the IEEPA in imposing the tariffs.

Congress

The ruling reinforces that taxation and tariff powers rest with Congress, not the executive branch.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

What’s next

The judge in the case will decide on Tuesday whether or not to allow Walker Reed Quinn out on bail.

The takeaway

This case highlights growing concerns in the community about repeat offenders released on bail, raising questions about bail reform, public safety on SF streets, and if any special laws to govern autonomous vehicles in residential and commercial areas.