Tuesday's First Hour: Historian Rod Stanley from Dexter, IA joins us to recount the story of the national plowing matches in 1948 where candidate Harry Truman spoke to a crowd of 100,000 people. Former Congressman from Minnesota Collin Peterson joins us on behalf of the American Carbon Alliance with his thoughts on the importance of capturing carbon to support the ethanol industry. We're also watching weather across the Midwest and competing regions in South America and talking about the progress of harvest.