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

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

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 18% - Joe Biden 22% - (IBD/TIPP 10/03/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +24

US - 2016 Democratic Presidential Primary: Hillary Clinton 41% - Bernie Sanders 23% - Joe Biden 20% - (Suffolk Univ/USA Today 10/01/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 35% - Joe Biden 17% - (NBC/WSJ 09/27/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +7

US - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 25% - Joe Biden 18% - (Quinnipiac 09/24/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 44% - Bernie Sanders 30% - Joe Biden 18% - (FOX News 09/23/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +14

US - 2016 Democratic Presidential Primary: Hillary Clinton 33% - Bernie Sanders 24% - Joe Biden 25% - (Bloomberg 09/23/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +9

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 24% - Joe Biden 22% - (CNN/ORC 09/21/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 24% - Joe Biden 21% - (ABC News/Wash Post 09/14/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 21% - Joe Biden 21% - (Emerson College 09/10/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +27

US - 2016 Democratic Presidential Primary: Hillary Clinton 37% - Bernie Sanders 27% - Joe Biden 20% - (CNN/ORC 09/10/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +10

US - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 20% - Joe Biden 22% - (Monmouth Univ. 09/08/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +22

US - 2016 Democratic Presidential Primary: Hillary Clinton 55% - Bernie Sanders 20% - Lincoln Chafee 1% - (PPP 09/01/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +35

US - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 22% - Joe Biden 18% - (Quinnipiac 08/27/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +23