News Poll: Trump leads Biden by 1 point in Iowa, a state Trump won by 9 points in 2016 June 15, 2020Brianne Pfannenstiel, Des Moines RegisterComments Off on Poll: Trump leads Biden by 1 point in Iowa, a state Trump won by 9 points in 2016 The results are among a wave of polling that indicates an increasingly unstable electoral map for the president.