Poll Watch: Des Moines Register Iowa 2014 Republican Senatorial Primary Survey

Des Moines Register Iowa 2014 GOP Senate Primary Poll

• Joni Ernst 36%
• Mark Jacobs 18%
• Matt Whitaker 13%
• Sam Clovis 11%
• Scott Schaben 2%
• Undecided 16%

Note: The victor needs at least 35 percent to win Tuesday's five-person primary outright.

Survey of 400 likely GOP primary voters was conducted May 27-30, 2014 by Selzer & Co. The margin of error is +/- 4.9 percentage points.

Poll Watch: PPP (D) Iowa 2014 Senatorial Survey

PPP (D) Iowa 2014 Senate Poll 

• Bruce Braley (D) 42% (41%)
• Mark Jacobs (R) 36% (35%)

• Bruce Braley (D) 45% (41%)
• Joni Ernst (R) 39% (35%)

• Bruce Braley (D) 43% (40%)
• Matt Whitaker (R) 36% (34%)

• Bruce Braley (D) 43% (42%)
• Sam Clovis (R) 34% (34%)

Favorable / Unfavorable {Net}

• Bruce Braley 29% (31%) / 29% (25%) {0%}
• Sam Clovis 19% (9%) / 19% (11%) {0%} 
• Matt Whitaker 13% (11%) / 15% (12%) {-2%}
• Joni Ernst 27% (9%) / 32% (12%) {-5%}
• Mark Jacobs 19% (13%) / 25% (12%) {-6%}

Survey of 914 registered voters was conducted May 15-19, 2014.  The margin of error is +/- 3.3 percentage points. Party ID: 38% (37%) Democrat; 34% (31%) Republican; 28% (32%) Independent/Other.  Ideology: 27% (30%) Moderate; 22% (24%) Somewhat conservative; 19% (14%) Very conservative; 18% (22%) Somewhat liberal; 14% (10%) Very liberal. Results from the poll conducted February 20-23, 2014 are in parentheses.

Poll Watch: PPP (D) Iowa 2014 Republican Senatorial Primary Survey

PPP (D) Iowa 2014 GOP Senate Primary Poll

• Joni Ernst 34% (13%)
• Mark Jacobs 18% (20%)
• Sam Clovis 14% (8%)
• Matt Whitaker 6% (11%)
• Paul Lunde 2% (3%)
• Scott Schaben 1% (3%)
• Someone else/Not sure 26% (42%)

Favorable / Unfavorable {Net}

• Joni Ernst 45% (16%) / 13% (7%) {+32%}
• Sam Clovis 29% (15%) / 12% (7%) {+17%}
• Matt Whitaker 19% (17%) / 8% (10%) {+11%}
• Mark Jacobs 29% (24%) / 20% (8%) {+9%}

Survey of 303 Republican primary voters was conducted May 15-19, 2014.  Ideology: 42% (33%) Very conservative; 37% (39%) Somewhat conservative; 16% (21%) Moderate; 3% (5%) Somewhat liberal; 1% (2%) Very liberal. Results from the poll conducted February 20-23, 2014 are in parentheses.

Poll Watch: Harper Polling (R) Iowa 2014 Republican Senatorial Primary Survey

Harper Polling (R) Iowa 2014 GOP Senate Primary Poll

• Joni Ernst 33%
• Mark Jacobs 23% 
• Sam Clovis 14%
• Matt Whitaker 3% 
• Scott Schaben 1%
• Not sure 26%

Favorable / Unfavorable {Net}

• Joni Ernst 54% / 11% {+43%}
• Mark Jacobs 43% / 21% {+22%}
• Sam Clovis 26% / 14% {+12%}
• Matt Whitaker 25% / 15% {+10%}
• Scott Schaben 8% / 22% {-14%}

Survey of 500 likely GOP primary voters was conducted April 30 - May 1, 2014 on behalf of American Heartland PAC. The margin of error is +/- 4.38 percentage points. Ideology: 50% Very conservative; 36% Somewhat conservative; 13% Moderate; 1% Liberal.

Poll Watch: The Polling Company/WomanTrend (R) Iowa 2014 Republican Senatorial Primary Survey

The Polling Company/WomanTrend (R) Iowa 2014 GOP Senate Primary Poll

• Joni Ernst 22.5%
• Mark Jacobs 20.4% 
• Matt Whitaker 6.7%
• Sam Clovis 5.8%
• Scott Schaben 2.1%
• Paul Lunde 0.4%
• Undecided 40.0%

Survey of 223 likely GOP primary voters was conducted April 13-14, 2014 on behalf of The Washington Free Beacon.

Poll Watch: Rasmussen (R) Iowa 2014 Senatorial Survey

Rasmussen (R) Iowa 2014 Senate Poll 

• Bruce Braley (D) 41%
• Mark Jacobs (R) 38%

• Bruce Braley (D) 40%
• Joni Ernst (R) 37%

• Bruce Braley (D) 40%
• Matt Whitaker (R) 36%

• Bruce Braley (D) 44%
• Sam Clovis (R) 31%

Survey of 750 likely voters was conducted March 24-25, 2014.  The margin of error is +/- 4 percentage points.