The evidence strongly supports the truthfulness of the statement. Multiple highly authoritative and relevant news sources, including the Financial Times, Bloomberg, CNBC, and Al Jazeera, directly and consistently report that President Trump announced a 25% tariff on countries trading with Iran. Several sources specify that the announcement was made via a post on Truth Social, adding a credible and specific detail to the claim. There is no conflicting evidence among the provided sources. While the summaries for the primary government sources (U.S. Treasury, Congress.gov) do not contain the text of the official order itself, they are listed as the authoritative places where such an action would be officially documented, and their presence as relevant sources implies the action is being officially tracked. News of a presidential announcement, particularly one made on social media, often precedes the formal publication of executive orders or Treasury Department directives. The overwhelming consistency across independent, high-authority news outlets makes the statement very likely to be true.