Poll Watch: Monmouth University Iowa 2016 Republican Caucus Survey

Monmouth University Iowa 2016 GOP Caucus Poll

• Ben Carson 32% [23%] (8%)
• Donald Trump 18% [23%] (13%)
• Ted Cruz 10% [9%] (7%) 
• Marco Rubio 10% [4%] (5%)
• Jeb Bush 8% [5%] (7%) 
• Carly Fiorina 5% [10%] (3%)
• Rand Paul 3% [3%] (5%)
• Mike Huckabee 2% [2%] (6%)
• Bobby Jindal 2% [1%] (4%)
• John Kasich 2% [4%] (2%)
• Chris Christie 1% [1%] (1%)
• Rick Santorum 1% [2%] (3%)
• Jim Gilmore 0% [0%] (0%)
• Lindsey Graham 0% [0%] (0%) 
• George Pataki 0% [0%] (0%)
• Undecided (vol.) 5% [5%] (11%)

Survey of 400 Iowa voters likely to attend the Republican presidential caucuses was conducted October 22-25, 2015. The margin of error is +/- 4.9 percentage points. Results from the poll conducted August 27-30, 2015 are in square brackets. Results from the poll conducted July 16-19, 2015 are in parentheses.