IA - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 22% - Joe Biden 17% - (PPP 09/22/2015) chart & more info

Bernie Sanders
Hillary Clinton
Hillary ClintonBernie SandersIowa Democratic Primary 2016
  • Clinton +21

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 Democratic Presidential Primary: Bernie Sanders 41% - Hillary Clinton 40% - Joe Biden 12% - (Quinnipiac 09/10/2015) chart & more info

Hillary Clinton
Bernie Sanders
Hillary ClintonBernie SandersIowa Democratic Primary 2016
  • Sanders +1

IA - Trump vs. Clinton: Donald Trump 48% - Hillary Clinton 43% - (NBC/Marist 09/06/2015) chart & more info

Hillary Clinton
Donald Trump
Hillary ClintonDonald TrumpIowa Trump vs. Clinton
  • Trump +5

IA - 2016 Presidential Election: Jeb Bush 46% - Joe Biden 44% - (NBC/Marist 09/06/2015) chart & more info

Joe Biden
Jeb Bush
Joe BidenJeb BushIowa 2016 Presidential Election
  • Bush +2

IA - 2016 Presidential Election: Joe Biden 49% - Donald Trump 45% - (NBC/Marist 09/06/2015) chart & more info

Donald Trump
Joe Biden
Joe BidenDonald TrumpIowa 2016 Presidential Election
  • Biden +4

IA - 2016 Presidential Election: Jeb Bush 50% - Hillary Clinton 39% - (NBC/Marist 09/06/2015) chart & more info

Hillary Clinton
Jeb Bush
Hillary ClintonJeb BushIowa 2016 Presidential Election
  • Bush +11

IA - 2016 Democratic Presidential Primary: Hillary Clinton 38% - Bernie Sanders 27% - Joe Biden 20% - (NBC/Marist 09/06/2015) chart & more info

Bernie Sanders
Hillary Clinton
Hillary ClintonBernie SandersIowa Democratic Primary 2016
  • Clinton +11

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 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 23% - Joe Biden 16% - (Loras College 09/02/2015) chart & more info

Bernie Sanders
Hillary Clinton
Hillary ClintonBernie SandersIowa Democratic Primary 2016
  • Clinton +25

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 Democratic Presidential Primary: Hillary Clinton 37% - Bernie Sanders 30% - Joe Biden 14% - (Des Moines Register/Bloomberg 08/29/2015) chart & more info

Bernie Sanders
Hillary Clinton
Hillary ClintonBernie SandersIowa Democratic Primary 2016
  • Clinton +7

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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