US - 2016 Presidential Election: Joe Biden 52% - Jeb Bush 44% - (CNN/ORC 09/10/2015) chart & more info

Jeb Bush
Joe Biden
  • Biden +8

SC - 2016 Democratic Presidential Primary: Hillary Clinton 54% - Joe Biden 24% - Bernie Sanders 9% - (PPP 09/09/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +30

NH - 2016 Presidential Election: Jeb Bush 46% - Joe Biden 45% - (NBC/Marist 09/06/2015) chart & more info

Joe Biden
Jeb Bush
  • Bush +1

NH - 2016 Presidential Election: Joe Biden 50% - Donald Trump 41% - (NBC/Marist 09/06/2015) chart & more info

Donald Trump
Joe Biden
  • Biden +9

IA - 2016 Presidential Election: Jeb Bush 46% - Joe Biden 44% - (NBC/Marist 09/06/2015) chart & more info

Joe Biden
Jeb Bush
  • Bush +2

IA - 2016 Presidential Election: Joe Biden 49% - Donald Trump 45% - (NBC/Marist 09/06/2015) chart & more info

Donald Trump
Joe Biden
  • Biden +4

US - 2016 Presidential Election: Donald Trump 44% - Joe Biden 42% - (SurveyUSA 09/05/2015) chart & more info

Joe Biden
Donald Trump
  • Trump +2

US - 2016 Presidential Election: Joe Biden 48% - Donald Trump 40% - (Quinnipiac 08/27/2015) chart & more info

Donald Trump
Joe Biden
  • Biden +8

US - 2016 Presidential Election: Joe Biden 44% - Marco Rubio 41% - (Quinnipiac 08/27/2015) chart & more info

Marco Rubio
Joe Biden
  • Biden +3

US - 2016 Presidential Election: Joe Biden 45% - Jeb Bush 39% - (Quinnipiac 08/27/2015) chart & more info

Jeb Bush
Joe Biden
  • Biden +6

PA - 2016 Democratic Presidential Primary: Hillary Clinton 53% - Joe Biden 15% - Bernie Sanders 10% - (Quinnipiac 06/18/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +38

OH - 2016 Democratic Presidential Primary: Hillary Clinton 60% - Joe Biden 13% - Bernie Sanders 10% - (Quinnipiac 06/18/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +47

FL - 2016 Democratic Presidential Primary: Hillary Clinton 64% - Joe Biden 9% - Jim Webb 0% - (Quinnipiac 06/18/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +55

SC - 2016 Democratic Presidential Primary: Hillary Clinton 56% - Joe Biden 15% - Bernie Sanders 10% - (Morning Consult 06/15/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +41

US - 2016 Democratic Presidential Primary: Hillary Clinton 60% - Joe Biden 14% - Bernie Sanders 10% - (CNN/ORC 06/02/2015) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +46