IA - 2016 GOP Presidential Primary: Donald Trump 25% - Ben Carson 18% - Ted Cruz 23% - (Quinnipiac 11/24/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +7

IA - 2016 GOP Presidential Primary: Donald Trump 25% - Ben Carson 23% - Marco Rubio 13% - (CNN/ORC 11/06/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +2

IA - 2016 GOP Presidential Primary: Donald Trump 22% - Ben Carson 21% - Ted Cruz 14% - (PPP 11/02/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +1

IA - 2016 GOP Presidential Primary: Ben Carson 28% - Donald Trump 20% - Ted Cruz 15% - (KBUR/Monmouth College 11/02/2015) chart & more info

Donald Trump
Ben Carson
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson +8

IA - 2016 GOP Presidential Primary: Ben Carson 32% - Donald Trump 18% - Marco Rubio 10% - (Monmouth Univ. 10/26/2015) chart & more info

Donald Trump
Ben Carson
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson +14

IA - 2016 GOP Presidential Primary: Ben Carson 31% - Donald Trump 19% - Marco Rubio 10% - (Loras College 10/26/2015) chart & more info

Donald Trump
Ben Carson
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson +12

IA - 2016 GOP Presidential Primary: Ben Carson 28% - Donald Trump 19% - Marco Rubio 9% - (Des Moines Register/Bloomberg 10/23/2015) chart & more info

Donald Trump
Ben Carson
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson +9

IA - 2016 GOP Presidential Primary: Ben Carson 28% - Donald Trump 20% - Marco Rubio 13% - (Quinnipiac 10/22/2015) chart & more info

Donald Trump
Ben Carson
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson +8

IA - 2016 GOP Presidential Primary: Donald Trump 24% - Ben Carson 19% - Carly Fiorina 8% - (NBC/WSJ/Marist 10/04/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +5

IA - 2016 GOP Presidential Primary: Donald Trump 24% - Ben Carson 17% - Carly Fiorina 13% - (PPP 09/22/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +7

IA - 2016 GOP Presidential Primary: Donald Trump 27% - Ben Carson 21% - Jeb Bush 6% - (Quinnipiac 09/11/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +6

IA - 2016 GOP Presidential Primary: Donald Trump 29% - Ben Carson 22% - Jeb Bush 6% - (NBC/Marist 09/06/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Trump +7

IA - 2016 GOP Presidential Primary: Donald Trump 25% - Jeb Bush 10% - Ben Carson 18% - (Loras College 09/01/2015) chart & more info

Jeb Bush
Donald Trump
Donald TrumpJeb BushIowa GOP Primary 2016
  • Trump +15

IA - 2016 GOP Presidential Primary: Donald Trump 23% - Ben Carson 23% - Scott Walker 7% - (Monmouth Univ. 08/31/2015) chart & more info

Ben Carson
Donald Trump
Donald TrumpBen CarsonIowa GOP Primary 2016
  • Carson 0

IA - 2016 GOP Presidential Primary: Donald Trump 23% - Jeb Bush 6% - Scott Walker 8% - (Des Moines Register/Bloomberg 08/29/2015) chart & more info

Jeb Bush
Donald Trump
Donald TrumpJeb BushIowa GOP Primary 2016
  • Trump +17

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