The Des Moines Register reports:
Democrat Theresa Greenfield leads Republican U.S. Sen. Joni Ernst by 3 percentage points in a Senate race that appears to be among the most competitive in the country.
With just over six weeks to Election Day, the new Des Moines Register/Mediacom Iowa Poll shows Greenfield leading 45% to 42% among likely voters. Another 3% say they would vote for someone else, 2% say they would not vote in the race and 7% are unsure.
Despite heavy campaigning and millions spent on television ads, the results are largely unchanged since June, when Greenfield led Ernst 46% to 43%.
Greenfield +20 among women > https://t.co/PRfTl27GFZ
— Jonathan Martin (@jmartNYT) September 19, 2020