US - 2016 Democratic Presidential Primary: Hillary Clinton 55% - Bernie Sanders 36% - Martin O'Malley 4% - (ABC News/Wash Post 01/27/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +19

US - 2016 GOP Presidential Primary: Donald Trump 41% - Ted Cruz 19% - Marco Rubio 8% - (CNN/ORC 01/26/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +22

US - 2016 GOP Presidential Primary: Donald Trump 37% - Ted Cruz 21% - Marco Rubio 11% - (ABC News/Wash Post 01/26/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +16

US - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 38% - Martin O'Malley 2% - (CNN/ORC 01/25/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +14

US - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 37% - Martin O'Malley 1% - (FOX News 01/25/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +12

US - 2016 GOP Presidential Primary: Donald Trump 34% - Ted Cruz 20% - Marco Rubio 11% - (FOX News 01/22/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +14

US - 2016 GOP Presidential Primary: Donald Trump 36% - Ted Cruz 17% - Marco Rubio 11% - (Monmouth Univ. 01/20/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +19

US - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 37% - Martin O'Malley 2% - (Monmouth Univ. 01/19/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +15

US - 2016 Presidential Election: Bernie Sanders 54% - Donald Trump 39% - (NBC/WSJ 01/17/2016) chart & more info

Donald Trump
Bernie Sanders
  • Sanders +15

US - 2016 Presidential Election: Hillary Clinton 51% - Donald Trump 41% - (NBC/WSJ 01/17/2016) chart & more info

Donald Trump
Hillary Clinton
  • Clinton +10

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 34% - Martin O'Malley 2% - (NBC/WSJ 01/17/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25

US - 2016 GOP Presidential Primary: Donald Trump 33% - Ted Cruz 20% - Marco Rubio 13% - (NBC/WSJ 01/14/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +13

US - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 41% - Martin O'Malley 2% - (CBS News/NYT 01/12/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +7

US - 2016 GOP Presidential Primary: Donald Trump 36% - Ted Cruz 19% - Marco Rubio 12% - (CBS News/NYT 01/12/2016) chart & more info

Ted Cruz
Donald Trump
  • Trump +17

US - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 39% - Martin O'Malley 2% - (IBD/TIPP 01/11/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +4