Laura Belin and Spencer Dirks lead with the state's response to massive flooding across northwest Iowa, in some areas surpassing 1993 levels. Other topics discussed: Attorney General Brenna Bird launches a cold case unit and joins another legal effort to help Donald Trump, beverage makers file federal lawsuit over Iowa law on hemp consumables, a national Democratic group targets seven Iowa House and Senate races, and notable findings from the latest Iowa Poll by Selzer & Co for the Des Moines Register and Mediacom.