US - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 40% - (Suffolk Univ/USA Today 02/17/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +10

US - 2016 Democratic Presidential Primary: Hillary Clinton 44% - Bernie Sanders 42% - (Quinnipiac 02/17/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +2

US - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 32% - (Rasmussen 02/07/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 44% - Bernie Sanders 43% - (Quinnipiac 02/05/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +1

US - 2016 Democratic Presidential Primary: Hillary Clinton 53% - Bernie Sanders 32% - (PPP 02/04/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +21

US - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 38% - Martin O'Malley 2% - (IBD/TIPP 01/28/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +12

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 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 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 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 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 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

US - 2016 Democratic Presidential Primary: Hillary Clinton 54% - Bernie Sanders 39% - Martin O'Malley 3% - (FOX News 01/08/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +15

US - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 34% - Martin O'Malley 7% - (CNN/ORC 12/23/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +16

3
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