Quinnipiac Sep 10, 14 - Sep 15, 14
  • Sample Size: 1167  
  • Joni Ernst +6 50%
  • Bruce Braley 44%
CNN/Opinion Research Sep 08, 14 - Sep 10, 14
  • Sample Size: 608  
  • Bruce Braley +1 49%
  • Joni Ernst 48%
Loras College Sep 02, 14 - Sep 05, 14
  • Sample Size: 1200  
  • Bruce Braley +4 45%
  • Joni Ernst 41%
CBS News/NYT/YouGov Aug 18, 14 - Sep 02, 14
  • Sample Size: 1746  
  • Bruce Braley +2 44%
  • Joni Ernst 42%
PPP (D) Aug 22, 14 - Aug 24, 14
  • Sample Size: 915  
  • Joni Ernst 42%
  • Bruce Braley 42%
CBS News/NYT/YouGov Jul 05, 14 - Jul 24, 14
  • Joni Ernst +1 48%
  • Bruce Braley 47%
NBC News/Marist Jul 07, 14 - Jul 13, 14
  • Sample Size: 1599  
  • Joni Ernst 43%
  • Bruce Braley 43%
Quinnipiac Jun 12, 14 - Jun 16, 14
  • Sample Size: 1277  
  • Bruce Braley +4 44%
  • Joni Ernst 40%
Loras College Jun 04, 14 - Jun 05, 14
  • Sample Size: 600  
  • Joni Ernst +6 48%
  • Bruce Braley 42%
Rasmussen Reports Jun 04, 14 - Jun 05, 14
  • Sample Size: 750  
  • Joni Ernst +1 45%
  • Bruce Braley 44%
PPP (D) May 15, 14 - May 19, 14
  • Sample Size: 913  
  • Bruce Braley +6 45%
  • Joni Ernst 39%
CEA/Hickman Analytics (D) Apr 24, 14 - Apr 30, 14
  • Sample Size: 500  
  • Bruce Braley +4 44%
  • Joni Ernst 40%
Suffolk Apr 03, 14 - Apr 08, 14
  • Sample Size: 800  
  • Bruce Braley +8 38%
  • Joni Ernst 30%
Rasmussen Reports Mar 24, 14 - Mar 25, 14
  • Sample Size: 750  
  • Bruce Braley +3 40%
  • Joni Ernst 37%
Quinnipiac Mar 05, 14 - Mar 10, 14
  • Sample Size: 1411  
  • Bruce Braley +13 42%
  • Joni Ernst 29%
PPP (D) Feb 20, 14 - Feb 23, 14
  • Sample Size: 869  
  • Bruce Braley +6 41%
  • Joni Ernst 35%
Quinnipiac Dec 10, 13 - Dec 15, 13
  • Bruce Braley +6 44%
  • Joni Ernst 38%
Harper (R) Nov 23, 13 - Nov 24, 13
  • Sample Size: 985  
  • Bruce Braley +6 42%
  • Joni Ernst 36%
PPP (D) Jul 05, 13 - Jul 07, 13
  • Sample Size: 668  
  • Bruce Braley +12 45%
  • Joni Ernst 33%