Poll Watch: Gravis Marketing/One America News Network (R) Iowa 2016 GOP Caucus Survey

Gravis Marketing/OAN (R) Iowa 2016 GOP Caucus Poll 

• Donald Trump 31% {34%} [31%] (18.8%) {31.7%} [30.9%]
• Ted Cruz 27% {28%} [31%] (10.6%) {6.9%} [5.5%] (6%) {6%} [4%] (7%)
• Marco Rubio 13% {5%] [9%] (8.9%) {5.8%} [2.8%] (13%) {12%} [7%] (4%)
• Ben Carson 7% {9%} [7%] (14.1%) {15.8%} [5.1%] (12%) {9%} [5%]  
• Jeb Bush 6% {4%] [4%] (6.9%) {4.1%} [10.0%] (10%) {16%} [10%] (14%)
• John Kasich 4% {4%} [2%] (2.6%) {1.4%} [5.0%]
• Chris Christie 3% {5%} [2%] (1.4%) {2.0%} [0.8%] (4%) {5%} [9%] (5%)
• Carly Fiorina 3% {1%} [3%] (9.7%) {4.6%} [4.3%] (5%) {3%} [3%]
• Rand Paul 2% {3%} [1%] (2.4%) {1.3%} [0.8%] (4%) {9%} [10%] (8%)
• Mike Huckabee 2% {2%} [4%] (1.8%) {2.6%} [6.0%] (8%) {8%} [7%] (9%)
• Rick Santorum 1% {0%} [0%] (1.3%) {0.6%} [2.9%] (6%) {2%} [6%]

Survey of 724 likely Republican caucus participants was conducted January 26-27, 2016. The margin of error is +/- 4 percentage points. Results from the poll conducted January 11-12, 2016 are in square brackets. Results from the poll conducted December 18-21, 2015 are in square brackets. Results from the poll released October 1, 2015 are in parentheses. Results from the poll conducted August 29-31, 2015 are in curly brackets. Results from the poll conducted July 29, 2015 are in square brackets. Results from the poll conducted May 28-29, 2015 are in parentheses. Results from the poll conducted April 13, 2015 are in curly brackets. Results from the poll conducted February 12-13, 2015 are in square brackets. Results from the poll conducted January 5-7, 2015 are in parentheses.