IA - 2016 Democratic Presidential Primary: Bernie Sanders 51% - Hillary Clinton 43% - Martin O'Malley 4% - (CNN/ORC 01/21/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +8

IA - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 39% - Martin O'Malley 7% - (Monmouth College/KBUR/Douglas Fulmer 01/21/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +9

FL - 2016 Democratic Presidential Primary: Hillary Clinton 62% - Bernie Sanders 26% - Martin O'Malley 4% - (Florida Atlantic Univ. 01/20/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +36

NC - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 26% - Martin O'Malley 5% - (PPP 01/20/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +33

NH - 2016 Democratic Presidential Primary: Bernie Sanders 60% - Hillary Clinton 33% - Martin O'Malley 1% - (CNN/WMUR 01/19/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +27

NH - 2016 Democratic Presidential Primary: Bernie Sanders 49% - Hillary Clinton 43% - Martin O'Malley 3% - (ARG 01/19/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +6

US - 2016 Democratic Presidential Primary: Hillary Clinton 52% - Bernie Sanders 37% - Martin O'Malley 2% - (Monmouth Univ. 01/19/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +15

MD - 2016 Democratic Presidential Primary: Hillary Clinton 40% - Bernie Sanders 27% - Martin O'Malley 5% - (Gonzales Research 01/19/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +13

UT - 2016 Democratic Presidential Primary: Hillary Clinton 50% - Bernie Sanders 40% - Martin O'Malley 2% - (Salt Lake Tribune/SurveyUSA 01/18/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +10

US - 2016 Democratic Presidential Primary: Hillary Clinton 59% - Bernie Sanders 34% - Martin O'Malley 2% - (NBC/WSJ 01/17/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +25

IA - 2016 Democratic Presidential Primary: Hillary Clinton 42% - Bernie Sanders 40% - Martin O'Malley 4% - (Des Moines Register/Bloomberg 01/14/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +2

US - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 41% - Martin O'Malley 2% - (CBS News/NYT 01/12/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +7

IA - 2016 Democratic Presidential Primary: Bernie Sanders 49% - Hillary Clinton 44% - Martin O'Malley 4% - (Quinnipiac 01/12/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +5

IA - 2016 Democratic Presidential Primary: Hillary Clinton 46% - Bernie Sanders 40% - Martin O'Malley 8% - (PPP 01/12/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +6

NH - 2016 Democratic Presidential Primary: Bernie Sanders 53% - Hillary Clinton 39% - Martin O'Malley 5% - (Monmouth Univ. 01/12/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +14

IA - 2016 Democratic Presidential Primary: Bernie Sanders 47% - Hillary Clinton 44% - Martin O'Malley 3% - (ARG 01/11/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +3

NH - 2016 Democratic Presidential Primary: Bernie Sanders 47% - Hillary Clinton 44% - Martin O'Malley 3% - (ARG 01/11/2016) chart & more info

Hillary Clinton
Bernie Sanders
  • Sanders +3

US - 2016 Democratic Presidential Primary: Hillary Clinton 43% - Bernie Sanders 39% - Martin O'Malley 2% - (IBD/TIPP 01/11/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +4

IA - 2016 Democratic Presidential Primary: Hillary Clinton 49% - Bernie Sanders 42% - Martin O'Malley 5% - (Mason-Dixon 01/10/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +7

IA - 2016 Democratic Presidential Primary: Hillary Clinton 48% - Bernie Sanders 45% - Martin O'Malley 5% - (NBC/WSJ/Marist 01/10/2016) chart & more info

Bernie Sanders
Hillary Clinton
  • Clinton +3