Senator Amy Klobuchar speaks to CBSN ahead of bus tour to Iowa 2020 Democratic presidential candidate and Senator Amy Klobuchar of Minnesota speaks to CBSN political reporter Caitlin Huey-Burns in Des Moines, Iowa. Klobuchar discussed her plan to win votes in the Midwest, but evaded a question about Hillary Clinton's suggestion that Representative Tulsi Gabbard is being "groomed" by Russia. Watch part of their discussion here.