US - 2016 Democratic Presidential Primary: Hillary Clinton 73% - Joe Biden 12% - Elizabeth Warren 8% - (ABC News/Wash Post 01/30/2014) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +61

US - 2016 Democratic Presidential Primary: Hillary Clinton 67% - Joe Biden 7% - Elizabeth Warren 7% - (PPP 01/29/2014) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +60

US - 2016 Democratic Presidential Primary: Hillary Clinton 65% - Joe Biden 8% - Elizabeth Warren 7% - (Quinnipiac 01/21/2014) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +57

NH - 2016 Democratic Presidential Primary: Hillary Clinton 65% - Joe Biden 10% - Elizabeth Warren 8% - (PPP 01/16/2014) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +55

US - 2016 Democratic Presidential Primary: Hillary Clinton 68% - Joe Biden 12% - Elizabeth Warren 7% - (Fox News 12/26/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +56

US - 2016 Democratic Presidential Primary: Hillary Clinton 66% - Joe Biden 10% - Elizabeth Warren 6% - (PPP 12/18/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +56

US - 2016 Democratic Presidential Primary: Hillary Clinton 66% - Joe Biden 8% - Elizabeth Warren 7% - (Quinnipiac 12/11/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +58

US - 2016 Democratic Presidential Primary: Hillary Clinton 65% - Joe Biden 12% - Elizabeth Warren 9% - (McClatchy/Marist 12/10/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +53

US - 2016 Democratic Presidential Primary: Hillary Clinton 63% - Joe Biden 12% - Elizabeth Warren 7% - (CNN/Opinion Research 11/29/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +51

FL - 2016 Democratic Presidential Primary: Hillary Clinton 70% - Joe Biden 9% - Elizabeth Warren 4% - (Quinnipiac 11/22/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +61

US - 2016 Presidential Election: Hillary Clinton 67% - Joe Biden 12% - Elizabeth Warren 4% - (PPP 11/05/2013) chart & more info

Joe Biden
Hillary Clinton
  • Clinton +55

US - 2016 Presidential Election: Jeb Bush 43% - Joe Biden 42% - (PPP 11/05/2013) chart & more info

Joe Biden
Jeb Bush
  • Bush +1

US - 2016 Presidential Election: Chris Christie 45% - Joe Biden 38% - (PPP 11/05/2013) chart & more info

Joe Biden
Chris Christie
  • Christie +7

US - 2016 Presidential Election: Joe Biden 46% - Ted Cruz 36% - (PPP 11/05/2013) chart & more info

Ted Cruz
Joe Biden
  • Biden +10

US - 2016 Presidential Election: Joe Biden 45% - Rand Paul 38% - (PPP 11/05/2013) chart & more info

Rand Paul
Joe Biden
  • Biden +7