Reactions to President Trump's $15 billion Iowa steel mill proposal

President Donald Trump said it will be the biggest steel plant in American history — and its home will be Iowa. On this Politics Day episode, we talk with political scientists Peter Hanson of Grinnell College and Jim McCormick of Iowa State University. We get their view on the new steel mill proposed in eastern Iowa, what the latest polls say about Iowa's toss-up races, Iowa Republicans breaking with Trump over the Iran war and more.