NH - 2016 Democratic Presidential Primary: Bernie Sanders 48% - Hillary Clinton 46% - Martin O'Malley 2% - (Franklin Pierce/RKM/Boston Herald 12/18/2015) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +2

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 28% - Martin O'Malley 5% - (ABC News/Wash Post 12/18/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +31

IA - Trump vs. Clinton: Hillary Clinton 45% - Donald Trump 43% - (PPP 12/17/2015) chart & more info

Donald Trump
Hillary Clinton
  • Clinton +2

IA - 2016 Presidential Election: Ted Cruz 47% - Hillary Clinton 44% - (PPP 12/17/2015) chart & more info

Hillary Clinton
Ted Cruz
  • Cruz +3

IA - 2016 Presidential Election: Marco Rubio 48% - Hillary Clinton 41% - (PPP 12/17/2015) chart & more info

Hillary Clinton
Marco Rubio
  • Rubio +7

IA - 2016 Presidential Election: Hillary Clinton 46% - Jeb Bush 41% - (PPP 12/17/2015) chart & more info

Jeb Bush
Hillary Clinton
  • Clinton +5

IA - 2016 Presidential Election: Hillary Clinton 45% - Ben Carson 45% - (PPP 12/17/2015) chart & more info

Ben Carson
Hillary Clinton
  • Carson 0

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 26% - Martin O'Malley 4% - (Monmouth Univ. 12/16/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +33

IA - 2016 Democratic Presidential Primary: Hillary Clinton 51% - Bernie Sanders 40% - Martin O'Malley 6% - (Quinnipiac 12/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +11

IA - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 27% - Martin O'Malley 4% - (Loras College 12/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +32

IA - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 34% - Martin O'Malley 7% - (PPP 12/15/2015) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +18

US - 2016 Presidential Election: Hillary Clinton 50% - Donald Trump 44% - (ABC News/Wash Post 12/15/2015) chart & more info

Donald Trump
Hillary Clinton
  • Clinton +6

US - 2016 Presidential Election: Hillary Clinton 50% - Donald Trump 40% - (NBC/WSJ 12/14/2015) chart & more info

Donald Trump
Hillary Clinton
  • Clinton +10

US - 2016 Presidential Election: Marco Rubio 48% - Hillary Clinton 45% - (NBC/WSJ 12/14/2015) chart & more info

Hillary Clinton
Marco Rubio
  • Rubio +3

US - 2016 Presidential Election: Hillary Clinton 48% - Ted Cruz 45% - (NBC/WSJ 12/14/2015) chart & more info

Ted Cruz
Hillary Clinton
  • Clinton +3