Trump warns of chaos if Supreme Court strikes down global tariffs

President Donald Trump warned on social media that a Supreme Court ruling against his global tariffs would create a 'complete mess' to undo, as judges weigh the legality of his use of the IEEPA authority; the case could force refunds and complicate enforcement. He also announced a 25% tariff on any country doing business with Iran, and Volkswagen said tariffs contributed to a drop in US sales last year.