The president's approval rating in Iowa has taken a dive. Sixty percent of respondents to this month’s Des Moines Register/Mediacom Iowa Poll say the United States has gotten off on the wrong track and 60 percent disapprove of the job Trump, a Republican, is doing as president. Trump’s 35 percent job approval rating marks a sharp decline from earlier this year in Iowa. Vice President Mike Pence and Senator Joni Ernst remain generally popular in the state with 48 percent approval. Fifty-one-percent like what Chuck Grassley is doing.