IA - 2016 Democratic Presidential Primary: Hillary Clinton 33% - Bernie Sanders 28% - Joe Biden 22% - (NBC/WSJ/Marist 10/04/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +5

NH - 2016 Democratic Presidential Primary: Bernie Sanders 42% - Hillary Clinton 28% - Joe Biden 18% - (NBC/WSJ/Marist 10/04/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +14

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

LA - 2016 Democratic Presidential Primary: Hillary Clinton 57% - Bernie Sanders 7% - Joe Biden 22% - (Advocate/WWL-TV 10/02/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +50

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

TX - 2016 Democratic Presidential Primary: Hillary Clinton 36% - Bernie Sanders 24% - Joe Biden 15% - (Texas Lyceum 10/01/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +12

WI - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 30% - Joe Biden 17% - (Marquette Univ. 09/30/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +12

NC - 2016 Democratic Presidential Primary: Hillary Clinton 37% - Bernie Sanders 17% - Joe Biden 30% - (PPP 09/29/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +20

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

NC - 2016 Democratic Presidential Primary: Hillary Clinton 53% - Bernie Sanders 23% - Lincoln Chafee 1% - (Elon Univ. 09/25/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +30

NH - 2016 Democratic Presidential Primary: Bernie Sanders 46% - Hillary Clinton 30% - Joe Biden 14% - (CNN/WMUR 09/24/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +16

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

FL - 2016 Democratic Presidential Primary: Hillary Clinton 60% - Bernie Sanders 15% - Joe Biden 16% - (Florida Atlantic Univ. 09/23/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +45

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

IA - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 22% - Joe Biden 17% - (PPP 09/22/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +21

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

MI - 2016 Democratic Presidential Primary: Hillary Clinton 41% - Bernie Sanders 22% - Joe Biden 22% - (MRG 09/17/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +19

NH - 2016 Democratic Presidential Primary: Bernie Sanders 35% - Hillary Clinton 31% - Joe Biden 14% - (WBUR/MassINC 09/16/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +4

FL - 2016 Democratic Presidential Primary: Hillary Clinton 55% - Bernie Sanders 18% - Joe Biden 17% - (PPP 09/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +37