US - 2016 Democratic Presidential Primary: Hillary Clinton 55% - Bernie Sanders 30% - Martin O'Malley 3% - (Bloomberg 11/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 26% - Martin O'Malley 7% - (PPP 11/13/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +33

US - 2016 Democratic Presidential Primary: Hillary Clinton 57% - Bernie Sanders 35% - Martin O'Malley 4% - (McClatchy/Marist 11/13/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +22

US - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 33% - Martin O'Malley 5% - (CBS News/NYT 11/12/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +19

US - 2016 Democratic Presidential Primary: Hillary Clinton 56% - Bernie Sanders 31% - Martin O'Malley 2% - (Fox News 11/04/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25

US - 2016 Democratic Presidential Primary: Hillary Clinton 53% - Bernie Sanders 35% - Martin O'Malley 0% - (Quinnipiac 11/04/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 62% - Bernie Sanders 31% - Martin O'Malley 3% - (NBC/WSJ 11/03/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +31

US - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 33% - Martin O'Malley 2% - (IBD/TIPP 10/31/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +15

US - 2016 Democratic Presidential Primary: Hillary Clinton 68% - Bernie Sanders 20% - Lincoln Chafee 0% - (Emerson College 10/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +48

US - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 29% - Joe Biden 15% - (NBC/WSJ 10/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +20

US - 2016 Democratic Presidential Primary: Hillary Clinton 54% - Bernie Sanders 23% - Joe Biden 16% - (ABC News/Wash Post 10/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +31

US - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 21% - Joe Biden 17% - (Monmouth Univ. 10/19/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +27

US - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 29% - Joe Biden 18% - (CNN/ORC 10/19/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +16

US - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 25% - Joe Biden 19% - (FOX News 10/13/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +20

US - 2016 Democratic Presidential Primary: Hillary Clinton 46% - Bernie Sanders 27% - Joe Biden 16% - (CBS News 10/11/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +19