Ohio's senior senator, Sherrod Brown, was campaigning in Iowa in early February. Iowa, of course, is the first real test for Democratic presidential candidates. Brown is one of many Democrats who have said they may get into the 2020 presidential campaign. They are lining up to try to be the candidate who challenges President Trump. WVXU Senior Political Analyst Howard Wilkinson spoke with News Director Maryanne Zeleznik about Brown's message in Iowa.