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 GOP Presidential Primary: Donald Trump 23% - Ben Carson 13% - Carly Fiorina 13% - (Suffolk Univ/USA Today 09/30/2015) chart & more info

Ben Carson
Donald Trump
  • Trump +10

US - 2016 Presidential Election: Bernie Sanders 52% - Donald Trump 36% - (NBC/WSJ 09/28/2015) chart & more info

Donald Trump
Bernie Sanders
  • Sanders +16

US - 2016 Presidential Election: Joe Biden 56% - Donald Trump 35% - (NBC/WSJ 09/28/2015) chart & more info

Donald Trump
Joe Biden
  • Biden +21

US - 2016 Presidential Election: Joe Biden 48% - Jeb Bush 40% - (NBC/WSJ 09/28/2015) chart & more info

Jeb Bush
Joe Biden
  • Biden +8

US - 2016 Presidential Election: Joe Biden 47% - Carly Fiorina 41% - (NBC/WSJ 09/28/2015) chart & more info

Carly Fiorina
Joe Biden
  • Biden +6

US - 2016 Presidential Election: Joe Biden 49% - Ben Carson 41% - (NBC/WSJ 09/28/2015) chart & more info

Ben Carson
Joe Biden
  • Biden +8

US - 2016 Presidential Election: Hillary Clinton 49% - Donald Trump 39% - (NBC/WSJ 09/28/2015) chart & more info

Donald Trump
Hillary Clinton
  • Clinton +10

US - 2016 Presidential Election: Hillary Clinton 45% - Jeb Bush 44% - (NBC/WSJ 09/28/2015) chart & more info

Jeb Bush
Hillary Clinton
  • Clinton +1

US - 2016 Presidential Election: Carly Fiorina 45% - Hillary Clinton 44% - (NBC/WSJ 09/28/2015) chart & more info

Hillary Clinton
Carly Fiorina
  • Fiorina +1

US - 2016 Presidential Election: Ben Carson 46% - Hillary Clinton 45% - (NBC/WSJ 09/28/2015) chart & more info

Hillary Clinton
Ben Carson
  • Carson +1

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 GOP Presidential Primary: Donald Trump 21% - Ben Carson 20% - Carly Fiorina 11% - (NBC/WSJ 09/27/2015) chart & more info

Ben Carson
Donald Trump
  • Trump +1

US - 2016 Presidential Election: Ben Carson 49% - Bernie Sanders 39% - (Quinnipiac 09/24/2015) chart & more info

Bernie Sanders
Ben Carson
  • Carson +10

US - 2016 Presidential Election: Bernie Sanders 44% - Jeb Bush 44% - (Quinnipiac 09/24/2015) chart & more info

Jeb Bush
Bernie Sanders
  • Bush 0