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
  • Trump +6

US - 2016 GOP Presidential Primary: Donald Trump 32% - Jeb Bush 9% - Ben Carson 19% - (CNN/ORC 09/10/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +23

US - 2016 GOP Presidential Primary: Donald Trump 34% - Jeb Bush 12% - Ben Carson 20% - (Emerson College 09/10/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +22

SC - 2016 GOP Presidential Primary: Donald Trump 37% - Ben Carson 21% - Jeb Bush 6% - (PPP 09/09/2015) chart & more info

Ben Carson
Donald Trump
  • Trump +16

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
  • Trump +7

NH - 2016 GOP Presidential Primary: Donald Trump 28% - Jeb Bush 8% - John Kasich 12% - (NBC/Marist 09/06/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +20

FL - 2016 GOP Presidential Primary: Donald Trump 29% - Jeb Bush 19% - Ben Carson 25% - (Opinion Savvy/Morris News 09/04/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +10

GA - 2016 GOP Presidential Primary: Donald Trump 34% - Jeb Bush 11% - Ben Carson 25% - (Fox 5 Atlanta/Morris News 09/04/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +23

US - 2016 GOP Presidential Primary: Donald Trump 30% - Jeb Bush 8% - Ben Carson 18% - (Monmouth Univ. 09/03/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +22

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
  • Trump +15

US - 2016 GOP Presidential Primary: Donald Trump 29% - Jeb Bush 9% - Ben Carson 15% - (PPP 09/01/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +20

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
  • 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
  • Trump +17

US - 2016 GOP Presidential Primary: Donald Trump 28% - Jeb Bush 7% - Ben Carson 12% - (Quinnipiac 08/27/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +21

NH - 2016 GOP Presidential Primary: Donald Trump 35% - Jeb Bush 7% - John Kasich 11% - (PPP 08/25/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +28

SC - 2016 GOP Presidential Primary: Donald Trump 30% - Ben Carson 15% - Jeb Bush 9% - (Monmouth Univ. 08/25/2015) chart & more info

Ben Carson
Donald Trump
  • Trump +15

WI - 2016 GOP Presidential Primary: Scott Walker 25% - Donald Trump 9% - Ben Carson 13% - (Marquette Univ. 08/20/2015) chart & more info

Donald Trump
Scott Walker
  • Walker +16

FL - 2016 GOP Presidential Primary: Donald Trump 21% - Jeb Bush 17% - Ben Carson 11% - (Quinnipiac 08/20/2015) chart & more info

Jeb Bush
Donald Trump
  • Trump +4

OH - 2016 GOP Presidential Primary: John Kasich 27% - Donald Trump 21% - Scott Walker 2% - (Quinnipiac 08/20/2015) chart & more info

Donald Trump
John Kasich
  • Kasich +6

PA - 2016 GOP Presidential Primary: Donald Trump 24% - Marco Rubio 10% - Jeb Bush 6% - (Quinnipiac 08/20/2015) chart & more info

Marco Rubio
Donald Trump
  • Trump +14