IA - 2016 Democratic Presidential Primary: Hillary Clinton 60% - Bernie Sanders 15% - Joe Biden 11% - (Quinnipiac 05/07/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +45

AZ - 2016 Democratic Presidential Primary: Hillary Clinton 58% - Bernie Sanders 16% - Lincoln Chafee 5% - (PPP 05/07/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +42

NH - 2016 Democratic Presidential Primary: Hillary Clinton 51% - Bernie Sanders 13% - Elizabeth Warren 20% - (WMUR/UNH 05/05/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +38

IA - 2016 Democratic Presidential Primary: Hillary Clinton 57% - Elizabeth Warren 15% - Joe Biden 6% - (Loras College 04/29/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +42

NC - 2016 Democratic Presidential Primary: Hillary Clinton 56% - Elizabeth Warren 11% - Joe Biden 8% - (SurveyUSA 04/28/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +45

IA - 2016 Democratic Presidential Primary: Hillary Clinton 62% - Bernie Sanders 14% - Martin O'Malley 6% - (PPP 04/28/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +48

VA - 2016 Democratic Presidential Primary: Hillary Clinton 80% - Joe Biden 5% - Bernie Sanders 2% - (Christopher Newport Univ. 04/27/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +75

NH - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 12% - Elizabeth Warren 24% - (Gravis Marketing 04/27/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +33

US - 2016 Democratic Presidential Primary: Hillary Clinton 62% - Joe Biden 9% - Bernie Sanders 4% - (FOX News 04/24/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +53

US - 2016 Democratic Presidential Primary: Hillary Clinton 60% - Joe Biden 10% - Bernie Sanders 8% - (Quinnipiac 04/23/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +50

US - 2016 Democratic Presidential Primary: Hillary Clinton 69% - Joe Biden 11% - Bernie Sanders 5% - (CNN/ORC 04/20/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +58

NJ - 2016 Democratic Presidential Primary: Hillary Clinton 63% - Bernie Sanders 3% - Joe Biden 10% - (Quinnipiac 04/20/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +60

WI - 2016 Democratic Presidential Primary: Hillary Clinton 58% - Elizabeth Warren 14% - Joe Biden 12% - (Marquette Univ. 04/17/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +44

NH - 2016 Democratic Presidential Primary: Hillary Clinton 45% - Bernie Sanders 12% - Elizabeth Warren 23% - (PPP 04/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +33

CA - 2016 Democratic Presidential Primary: Hillary Clinton 56% - Elizabeth Warren 11% - Joe Biden 8% - (Emerson College 04/14/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +45

NC - 2016 Democratic Presidential Primary: Hillary Clinton 53% - Joe Biden 13% - Elizabeth Warren 11% - (PPP 04/10/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +40

US - 2016 Democratic Presidential Primary: Hillary Clinton 54% - Elizabeth Warren 14% - Joe Biden 7% - (PPP 04/07/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +40

US - 2016 Democratic Presidential Primary: Hillary Clinton 61% - Joe Biden 12% - Elizabeth Warren 11% - (FOX News 04/02/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +49

FL - 2016 Democratic Presidential Primary: Hillary Clinton 65% - Joe Biden 11% - Elizabeth Warren 7% - (Quinnipiac 04/02/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +54

OH - 2016 GOP Presidential Primary: Hillary Clinton 54% - Elizabeth Warren 14% - Joe Biden 9% - (Quinnipiac 04/02/2015) chart & more info

Elizabeth Warren
Hillary Clinton
  • Clinton +40