US - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 24% - Lincoln Chafee 2% - (Rasmussen 08/26/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +26

US - 2016 Democratic Presidential Primary: Hillary Clinton 47% - Bernie Sanders 29% - Joe Biden 14% - (CNN/ORC 08/19/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 30% - Joe Biden 10% - (FOX News 08/16/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +19

US - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 16% - Joe Biden 12% - (Monmouth Univ. 08/04/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +36

US - 2016 Democratic Presidential Primary: Hillary Clinton 58% - Bernie Sanders 17% - Joe Biden 11% - (CBS News 08/04/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +41

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 25% - Martin O'Malley 3% - (NBC/WSJ 08/03/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +34

US - 2016 Democratic Presidential Primary: Hillary Clinton 51% - Bernie Sanders 22% - Martin O'Malley 1% - (FOX News 08/03/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +29

US - 2016 Democratic Presidential Primary: Hillary Clinton 54% - Bernie Sanders 33% - Joe Biden 9% - (Emerson College 07/30/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +21

US - 2016 Democratic Presidential Primary: Hillary Clinton 55% - Bernie Sanders 17% - Martin O'Malley 1% - (Quinnipiac 07/30/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +38

US - 2016 Democratic Presidential Primary: Hillary Clinton 56% - Bernie Sanders 19% - Martin O'Malley 0% - (CNN/ORC 07/26/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +37

US - 2016 Democratic Presidential Primary: Hillary Clinton 57% - Bernie Sanders 22% - Martin O'Malley 2% - (PPP 07/22/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +35

US - 2016 Democratic Presidential Primary: Hillary Clinton 63% - Bernie Sanders 14% - Joe Biden 12% - (ABC News/Wash Post 07/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +49

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 19% - Martin O'Malley 1% - (FOX News 07/16/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +40

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 14% - Martin O'Malley 0% - (Suffolk Univ. 07/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +45

US - 2016 Democratic Presidential Primary: Hillary Clinton 51% - Bernie Sanders 17% - Martin O'Malley 1% - (Monmouth Univ. 07/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +34