The Supreme Court struck down Donald Trump's trade tariffs on the grounds that he used the wrong rules to implement them.

Posted by Americast, Sep 16, 2026Checked Oct 30, 2026

Polygraph verdictTrue

Sources: 5 support2 context
Said: 1 time·
Confidence: 80%

AmericastSep 16, 2026

The Supreme Court's 6-3 ruling on February 20, 2026 held that IEEPA does not authorize the president to impose tariffs, striking down his IEEPA-based tariffs on statutory-authority grounds, which matches the claim's 'wrong rules' framing.

A guest makes this claim. Listeners heard it, so it counts against the post, and on the guest's own record.

What was said

… Well, no president could be found criminally liable for anything that they did as they were carrying out their duties as president. That was a very big win for Donald Trump. But they've issued a couple of defeats recently. I mean, notably, striking down his trade tariffs, saying that he'd used the wrong rules in order to imply them, and now on mail-in voting. And he was very powerful, wasn't he, in his attacks on them, not just on the decision, but on the justices themselves when he was railing about. This one's really social. It was a long post, ah, but it's worth reading some of it. …

Americast · Sep 16, 2026· from the transcriptPost →

What we found

Supports. The Supreme Court ruled 6-3, in an opinion by Chief Justice Roberts, that IEEPA does not give the president authority to impose tariffs, invalidating the IEEPA tariffs.[1][2][3][4]

Supports. The ruling rested on the statute: the Court held Trump's reading of IEEPA as granting tariff power was incorrect and that he needed clear congressional authorization, which matches 'used the wrong rules' in substance.[1][3][4][5]

Context. The decision did not affect all of Trump's tariffs, only those imposed under IEEPA; existing tariffs on steel, aluminum, auto parts and others were not addressed, and the president announced a replacement 10% global tariff under Section 122 of the Trade Act of 1974.[2][6][7]

Context. The ruling did not address how the roughly $130-175 billion in IEEPA tariff revenue already collected would be refunded.[4][7]