University of Chicago Professor Mearsheimer on how the US has failed to achieve a single goal in Iran:When the war began on February 28 of this year, the United States had four goals.The first was regime change. The second was the elimination of Iran's uranium enrichment capabilities. The third was the destruction of Iran's long-range missile production and deployment capabilities. And finally, the fourth was ending Iran's support for the Houthis, Hezbollah, and Hamas.