Poll Update

2016 Iowa Democratic Presidential Caucus - Clinton 48%, Sanders 37% (NBC News/Marist College 8/26-9/2/15)

Population 1,129 Adults
Margin of Error ±2.9 percentage points
Polling Method Live Phone
Source NBC/Marist [PDF]
This poll asked respondents 7 questions tracked by HuffPost Pollster. Read our FAQ.

2016 Iowa Democratic Presidential Caucus

Asked of 345 Registered Voters - Democrat
Clinton 48%
Sanders 37%
O'Malley 4%
Undecided 8%
Webb 2%
Chafee 1%

2016 Iowa Republican Presidential Caucus

Asked of 390 Registered Voters - Republican
Trump 29%
Cruz 4%
Rubio 4%
Carson 22%
Bush 6%
Fiorina 5%
Kasich 2%
Paul 5%
Christie 2%
Huckabee 3%
Undecided 8%
Jindal 4%
Santorum 1%
Graham 0%
Pataki 0%
Gilmore 0%
Walker 5%
Perry 0%

Iowa: Obama Job Approval

Asked of 1129 Adults
Approve 40%
Disapprove 52%
Undecided 7%

2016 Iowa Presidential GE

Asked of 998 Registered Voters
Clinton 39%
Bush 50%
Undecided 11%

2016 Iowa President: Trump vs. Clinton

Asked of 998 Registered Voters
Clinton 43%
Trump 48%
Undecided 9%

2016 Iowa Presidential GE

Asked of 998 Registered Voters
Biden 44%
Bush 46%
Undecided 10%

2016 Iowa Presidential GE

Asked of 998 Registered Voters
Biden 49%
Trump 45%
Undecided 7%