Poll Update

2016 Iowa Republican Presidential Caucus - Trump 31%, Walker 15% (Gravis Marketing/One America News 7/29)

Population 670 Registered Voters
Margin of Error ±3.8 percentage points
Polling Method Automated Phone
Source Gravis Marketing/OANN
This poll asked respondents 3 questions tracked by HuffPost Pollster. Read our FAQ.

2016 Iowa Republican Presidential Caucus

Asked of 277 Likely Voters - Republican
Trump 31%
Cruz 6%
Rubio 3%
Carson 5%
Bush 10%
Kasich 5%
Christie 1%
Fiorina 4%
Paul 1%
Huckabee 6%
Santorum 3%
Pataki 1%
Graham 1%
Jindal 7%
Walker 15%
Perry 2%

2016 Iowa Democratic Presidential Caucus

Asked of 236 Likely Voters - Democrat
Clinton 51%
Sanders 24%
O'Malley 5%
Warren 11%
Biden 6%
Webb 1%
Chafee 2%

Iowa: Obama Job Approval

Asked of 670 Registered Voters
Approve 41%
Disapprove 51%
Undecided 8%