Poll Update

2016 Iowa Democratic Presidential Caucus - Clinton 49%, Sanders 42% (Mason-Dixon/AARP 1/4-1/8/16)

Population 1,007 Likely Voters
Margin of Error ±3.1 percentage points
Polling Method Live Phone
Source Mason-Dixon/AARP
This poll asked respondents 2 questions tracked by HuffPost Pollster. Read our FAQ.

2016 Iowa Democratic Presidential Caucus

Asked of 503 Likely Voters - Democrat
Clinton 49%
Sanders 42%
O'Malley 5%
Undecided 5%

2016 Iowa Republican Presidential Caucus

Asked of 504 Likely Voters - Republican
Cruz 31%
Trump 24%
Rubio 12%
Carson 6%
Bush 5%
Paul 4%
Christie 4%
Fiorina 3%
Kasich 3%
Huckabee 2%
Santorum 1%
Gilmore 0%
Undecided 6%