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Iowa Democratic Presidential Caucus

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Polling Data

PollDateSampleMoE
Clinton
Sanders
O'Malley
Spread
Final Results------49.849.60.5Clinton +0.2
RCP Average1/21 - 1/31----47.943.94.3Clinton +4.0
EmersonEmerson1/29 - 1/31300 LV5.651434Clinton +8
QuinnipiacQuinnipiac1/25 - 1/31919 LV5.946493Sanders +3
DM Register/BloombergDM Register1/26 - 1/29602 LV4.045423Clinton +3
NBC/WSJ/MaristNBC/WSJ1/24 - 1/26426 LV4.748453Clinton +3
PPP (D)PPP (D)1/26 - 1/27851 LV3.448407Clinton +8
GravisGravis1/26 - 1/27810 LV3.053425Clinton +11
MonmouthMonmouth1/23 - 1/26504 LV4.447426Clinton +5
ARGARG1/21 - 1/24400 LV5.045483Sanders +3

All Iowa Democratic Presidential Caucus Polling Data

RCP Poll Average
Iowa Democratic Presidential Caucus
47.9
Clinton +4.0
43.9
Sanders
4.3
O'Malley
--
Biden
--
Webb
--
Chafee
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
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Polling Data

PollDateSampleMoE
Clinton
Sanders
O'Malley
Spread
Final Results------49.849.60.5Clinton +0.2
RCP Average1/21 - 1/31----47.943.94.3Clinton +4.0
EmersonEmerson1/29 - 1/31300 LV5.651434Clinton +8
QuinnipiacQuinnipiac1/25 - 1/31919 LV5.946493Sanders +3
DM Register/BloombergDM Register1/26 - 1/29602 LV4.045423Clinton +3
NBC/WSJ/MaristNBC/WSJ1/24 - 1/26426 LV4.748453Clinton +3
PPP (D)PPP (D)1/26 - 1/27851 LV3.448407Clinton +8
GravisGravis1/26 - 1/27810 LV3.053425Clinton +11
MonmouthMonmouth1/23 - 1/26504 LV4.447426Clinton +5
ARGARG1/21 - 1/24400 LV5.045483Sanders +3
QuinnipiacQuinnipiac1/18 - 1/24606 LV4.045494Sanders +4
FOX NewsFOX News1/18 - 1/21432 LV4.548423Clinton +6
CBS News/YouGovCBS/YouGov1/18 - 1/21490 LV8.946475Sanders +1
EmersonEmerson1/18 - 1/20271 LV5.952433Clinton +9
KBURKBUR1/18 - 1/19570 LV4.148397Clinton +9
CNN/ORCCNN/ORC1/15 - 1/20280 LV6.043514Sanders +8
Loras CollegeLoras1/13 - 1/18500 LV3.159307Clinton +29
Iowa St. Univ./WHO-TVISU/WHO-TV1/5 - 1/22518 LV--47451Clinton +2
GravisGravis1/11 - 1/12461 LV5.057367Clinton +21
PPP (D)PPP (D)1/8 - 1/10580 LV4.146408Clinton +6
DM Register/BloombergDM Register1/7 - 1/10503 LV4.442404Clinton +2
ARGARG1/6 - 1/10400 LV5.044473Sanders +3
QuinnipiacQuinnipiac1/5 - 1/10492 LV4.444494Sanders +5
NBC/WSJ/MaristNBC/WSJ1/2 - 1/7422 LV4.848455Clinton +3
GravisGravis12/18 - 12/21418 LV5.0493110Clinton +18
CBS News/YouGovCBS/YouGov12/14 - 12/17459 LV8.650454Clinton +5
PPP (D)PPP (D)12/10 - 12/13526 LV4.352347Clinton +18
Des Moines RegisterDM Register12/7 - 12/10404 LV4.948394Clinton +9
FOX NewsFOX News12/7 - 12/10357 LV5.050365Clinton +14
Loras CollegeLoras12/7 - 12/10501 LV4.459274Clinton +32
QuinnipiacQuinnipiac12/4 - 12/13727 LV3.651406Clinton +11
MonmouthMonmouth12/3 - 12/6405 LV4.955336Clinton +22
CNN/ORCCNN/ORC11/28 - 12/6442 LV4.554364Clinton +18
QuinnipiacQuinnipiac11/16 - 11/22543 LV4.251424Clinton +9
CBS News/YouGovCBS/YouGov11/15 - 11/19602 LV7.650445Clinton +6
Iowa St. Univ./WHO-TVISU/WHO-TV11/2 - 11/15496 LV--50283Clinton +22
CNN/ORCCNN/ORC10/29 - 11/4498 LV4.555373Clinton +18
PPP (D)PPP (D)10/30 - 11/1615 LV3.957257Clinton +32
Gravis MarketingGravis10/29 - 10/29273 RV6.057253Clinton +32
KBURKBUR10/29 - 10/31681 LV3.846325Clinton +14
MonmouthMonmouth10/22 - 10/25400 LV4.965245Clinton +41
Loras CollegeLoras10/19 - 10/22500 LV4.462243Clinton +38
CBS/YouGovCBS/YouGov10/15 - 10/22554 LV6.946433Clinton +3
DMR/BloombergDMR/Bloomberg10/16 - 10/19402 LV4.948412Clinton +7
QuinnipiacQuinnipiac10/14 - 10/20592 LV4.051404Clinton +11
NBC/WSJ/MaristNBC/WSJ9/23 - 9/30348 RV5.333283Clinton +5
Gravis MarketingGravis9/25 - 9/27328 RV5.440312Clinton +9
PPP (D)PPP (D)9/18 - 9/20488 RV4.443223Clinton +21
CBS News/YouGovCBS/YouGov9/3 - 9/10646 LV6.633435Sanders +10
QuinnipiacQuinnipiac8/27 - 9/8832 LV3.440413Sanders +1
NBC News/MaristNBC/Marist8/26 - 9/2345 RV5.338274Clinton +11
Gravis MarketingGravis8/29 - 8/31507 RV4.445175Clinton +28
Des Moines RegisterDM Register8/23 - 8/26404 LV4.937303Clinton +7
Loras CollegeLoras8/24 - 8/27502 LV4.448234Clinton +25
Suffolk UniversitySuffolk8/20 - 8/24500 LV4.454204Clinton +34
CNN/ORCCNN/ORC8/7 - 8/111258 LV3.050311Clinton +19
PPP (D)PPP (D)8/7 - 8/9567 LV4.152257Clinton +27
Gravis MarketingGravis7/29 - 7/29236 RV6.451245Clinton +27
NBC News/MaristNBC/Marist7/14 - 7/21320 RV5.549253Clinton +24
KBUR/WAAKBUR/WAA6/27 - 6/291000 LV3.163205Clinton +43
QuinnipiacQuinnipiac6/20 - 6/29761 LV3.652333Clinton +19
BloombergBloomberg6/19 - 6/22401 LV4.950242Clinton +26
Morning ConsultMrng. Consult5/31 - 6/8322 RV6.054121Clinton +42
Des Moines RegisterDM Register5/25 - 5/29437 LV4.757162Clinton +41
Gravis MarketingGravis5/28 - 5/29434 RV5.059153Clinton +44
QuinnipiacQuinnipiac4/25 - 5/4692 LV3.760153Clinton +45
PPP (D)PPP (D)4/23 - 4/26466 LV4.562146Clinton +48
Loras CollegeLoras4/21 - 4/23491 LV4.45722Clinton +42
QuinnipiacQuinnipiac2/16 - 2/23619 LV3.96150Clinton +42
NBC News/MaristNBC/Marist2/3 - 2/10321 RV5.56870Clinton +56
Des Moines RegisterDM Register1/26 - 1/29401 LV4.95651Clinton +40
Loras CollegeLoras1/21 - 1/26261 LV6.14840Clinton +31
FOX NewsFOX News10/28 - 10/30352 LV5.062--2Clinton +48
Des Moines RegisterDM Register10/1 - 10/7426 LV4.85330Clinton +43
CNN/ORCCNN/ORC9/8 - 9/10309 RV5.55352Clinton +38
USA Today/SuffolkUSA Today8/23 - 8/26191 LV7.166--2Clinton +56
PPP (D)PPP (D)5/15 - 5/19356 RV5.259--1Clinton +47
Vox Populi/Daily Caller (R)Vox Populi/Daily Caller (R)4/22 - 4/24RV--71--1Clinton +58
Suffolk UniversitySuffolk4/3 - 4/8135 LV8.463----Clinton +51
PPP (D)PPP (D)2/20 - 2/23335 RV5.467--0Clinton +55
Harper (R)Harper (R)11/23 - 11/24308 LV5.671--1Clinton +60
PPP (D)PPP (D)7/5 - 7/7260 RV6.171--1Clinton +59
PPP (D)PPP (D)2/1 - 2/3313 RV5.568--0Clinton +47
Harper (R)Harper (R)1/29 - 1/29LV--65----Clinton +51
PPP (D)PPP (D)7/12 - 7/15416 RV4.860--0Clinton +42
PPP (D)PPP (D)5/3 - 5/6335 RV5.462--1Clinton +48