Trump claims ‘we’ve won’ war as more troops deploy to Middle East

Tonight on The Last Word: Donald Trump’s Iran war is causing rising gas prices and fertilizer costs. Also, Trump is focused on vanity projects during the Iran war. Plus, nearly 40 million Americans are under a heat advisory on the first day of spring. And Democrats look to flip a local House seat in Trump’s Palm Beach County district. Rep. Eugene Vindman, Rep. Eric Swalwell, Michael Mann, and Emily Gregory join Ali Velshi.