Poll Update

2016 Iowa President - Trump 41%, Clinton 40% (Suffolk University 8/8-8/10/16)

Population 500 Likely Voters
Margin of Error ±4.4 percentage points
Polling Method Live Phone
Source Suffolk
This poll asked respondents 4 questions tracked by HuffPost Pollster. Read our FAQ.

If the general election was held today and the candidates were Democrat Hillary Clinton or Republican Donald Trump, for whom will you vote or lean toward?

Asked of 500 Likely Voters
Republican Donald Trump 41%
Democrat Hillary Clinton 40%
Undecided 17%
Refused 2%

Iowa’s presidential ballot may include Libertarian Gary Johnson and Green Party candidate Jill Stein. If the general election was held today and the candidates were Democrat Hillary Clinton, Republican Donald Trump, Green Party Jill Stein, or Libertarian Gary Johnson, for whom will you vote or lean?

Asked of 500 Likely Voters
Republican Donald Trump 37%
Democrat Hillary Clinton 36%
Libertarian Gary Johnson 6%
Green Party Jill Stein 3%
Undecided 17%
Refused 1%

This November, the candidates for U.S. Senate will be Republican Chuck Grassley and Democrat Patty Judge. At this point, who will you vote for or lean toward?

Asked of 500 Likely Voters
Chuck Grassley, the Republican I 52%
Patty Judge, the Democrat 42%
Undecided 6%
Refused 0%

Do you approve or disapprove of the way Barack Obama is handling his job as president?

Asked of 500 Likely Voters
Approve 43%
Disapprove 50%
Undecided 7%