NH - 2016 Democratic Presidential Primary: Bernie Sanders 38% - Hillary Clinton 30% - Joe Biden 19% - (Boston Herald/Franklin Pierce Univ. 10/19/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +8

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

NH - 2016 Democratic Presidential Primary: Hillary Clinton 37% - Bernie Sanders 35% - Joe Biden 11% - (Suffolk Univ/Boston Globe 10/16/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +2

NJ - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 19% - Joe Biden 10% - (Rutgers-Eagleton 10/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +30

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

CT - 2016 Democratic Presidential Primary: Hillary Clinton 37% - Bernie Sanders 25% - Joe Biden 18% - (Quinnipiac 10/13/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +12

PA - 2016 Democratic Presidential Primary: Hillary Clinton 40% - Bernie Sanders 22% - Joe Biden 20% - (PPP 10/13/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

SC - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 24% - Joe Biden 18% - (CNN/ORC 10/12/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25

NV - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 34% - Joe Biden 12% - (CNN/ORC 10/12/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +16

VA - 2016 Democratic Presidential Primary: Hillary Clinton 40% - Bernie Sanders 23% - Joe Biden 23% - (Christopher Newport Univ. 10/12/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +17

MD - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 20% - Joe Biden 26% - (Wash Post/Univ. of Maryland 10/12/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +23

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

NH - 2016 Democratic Presidential Primary: Bernie Sanders 33% - Hillary Clinton 30% - Joe Biden 10% - (Gravis Marketing 10/09/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +3

US - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 23% - Joe Biden 17% - (Fairleigh Dickinson Univ. 10/08/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +22

FL - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 19% - Joe Biden 19% - (Quinnipiac 10/07/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +24

OH - 2016 Democratic Presidential Primary: Hillary Clinton 40% - Bernie Sanders 19% - Joe Biden 21% - (Quinnipiac 10/07/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +21

CA - 2016 Democratic Presidential Primary: Hillary Clinton 40% - Bernie Sanders 31% - Joe Biden 15% - (Field 10/07/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +9

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 24% - Joe Biden 20% - (PPP 10/06/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

MD - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 17% - Joe Biden 23% - (Goucher College 10/06/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25