Trump announces 'most crushing economic operation' against Iran, threatens Oman

President Trump announced sweeping new economic measures against Iran, calling it 'Economic D-Day' and warning any country doing business with Tehran will face consequences. He also threatened to bomb Oman if it interferes with the U.S. blockade of Iranian ships in the Strait of Hormuz. Trump said no talks are underway with Iran, though U.S. officials indicated positive discussions occurred before Trump ordered a halt. Oil prices rose as Hormuz tensions persist. 51 clean stories shaped this window, with sentiment leaning bullish at 55/100. Also in focus: Treasury plans to double long-dated buybacks; market reaction conflicting.