President Trump leads all potential Democratic opponents in head to head matchups in Iowa. The President leads Buttigieg by a point 46% to 45%. Against Biden, he leads 49% to 45%, and against Sanders and Warren he leads 50% to 43%. This is a shift from the previous Emerson Iowa poll, in which Sanders lead Trump by a point, and Biden and Warren trailed Trump by two points.
With the impeachment investigations reaching a boiling point in D.C., opposition to impeachment in the Hawkeye state sits at 50% while 38% are supportive of it. 12% of Iowans still have yet to make up their minds about the issue. Despite the recent hearings and pressure from the House Democrats, support for impeachment has dropped slightly since the last Emerson Iowa poll in mid-October when 48% opposed impeachment, 42% supported it, and 10% were unsure.
https://emersonpolling.reportablenews.com/pr/iowa-2020-warren-s-support-drops-while-sanders-rises