rowid,Pollster,Pollster Rating ID,# of Polls,NCPP / AAPOR / Roper,Live Caller With Cellphones,Methodology,Banned by 538,Predictive    Plus-Minus,538 Grade,Mean-Reverted Bias,Races Called Correctly,Misses Outside MOE,Simple Average Error,Simple Expected Error,Simple Plus-Minus,Advanced Plus-Minus,Mean-Reverted Advanced Plus Minus,# of Polls for Bias Analysis,Bias,House Effect,Average Distance from Polling Average (ADPA),Herding Penalty,latest_poll
1,Monmouth University,215,108,yes,yes,Live,no,-1.6,A+,D +1.3,81%,21%,5.4,6.7,-1.2,-2.0,-1.6,71,D +1.8,R +0.4,5.2,0.2,3/13/20
2,Selzer & Co.,304,48,yes,yes,Live,no,-1.3,A+,D +0.1,79%,25%,4.6,6.1,-1.3,-1.8,-1.1,31,D +0.2,D +0.2,5.2,0.0,11/1/18
3,ABC News/The Washington Post,3,73,yes,yes,Live,no,-1.3,A+,D +0.5,72%,7%,2.8,4.8,-1.7,-1.7,-1.2,68,D +0.8,D +1.3,3.8,0.12,10/31/18
4,Siena College/The New York Times Upshot,448,59,yes,yes,Live,no,-1.1,A+,R +0.3,69%,10%,3.9,5.7,-1.6,-1.5,-1.1,58,R +0.4,D +0.4,4.4,0.19,1/22/20
5,Field Research Corp. (Field Poll),94,25,yes,yes,Live,no,-1.1,A/B,R +0.7,100%,16%,3.9,5.6,-1.5,-2.0,-0.7,18,R +2.5,D +0.6,4.7,0.01,5/29/16
6,Marquette University Law School,195,12,yes,yes,Live,no,-1.0,A/B,D +0.2,79%,8%,2.8,5.9,-2.9,-2.8,-0.9,8,D +1.0,R +0.3,4.9,0.0,3/27/20
7,Muhlenberg College,219,29,yes,yes,Live,no,-1.0,A+,R +0.2,84%,7%,3.4,6.0,-2.4,-2.3,-1.1,28,R +0.3,D +0.2,3.9,0.97,10/30/18
8,Marist College,183,183,yes,yes,Live,no,-1.0,A+,R +0.3,84%,25%,5.4,6.5,-0.8,-1.0,-0.9,113,R +0.4,R +0.2,5.2,0.0,3/13/20
9,Data Orbital,73,9,yes,yes,Live,no,-0.9,A/B,D +0.3,94%,0%,2.3,5.3,-2.8,-2.4,-0.7,9,D +1.2,R +1.1,3.7,0.65,10/17/18
10,National Journal,224,12,yes,yes,Live,no,-0.8,A/B,R +0.1,100%,0%,2.6,6.1,-3.4,-3.2,-0.7,12,R +0.6,D +0.3,3.5,0.89,10/25/08
11,Stockton University,317,10,yes,yes,Live,no,-0.8,A/B,D +0.7,100%,20%,4.0,5.3,-1.1,-1.4,-0.4,10,D +2.3,D +0.7,6.1,0.0,10/28/18
12,SurveyUSA,325,787,yes,partial,IVR/Online/Live,no,-0.8,A,D +0.1,89%,20%,4.7,5.9,-1.0,-1.1,-1.0,627,D +0.1,R +0.4,5.0,0.12,3/5/20
13,Ciruli Associates,51,16,yes,yes,Live,no,-0.8,A/B,R +0.4,94%,0%,3.5,5.9,-2.3,-2.5,-0.5,16,R +2.1,R +2.7,5.3,0.59,10/25/06
14,MassINC Polling Group,198,18,yes,partial,Online/Live,no,-0.7,A/B,R +0.7,83%,22%,4.9,6.7,-1.7,-1.6,-0.7,12,R +2.4,R +1.4,6.4,0.0,2/25/20
15,Fairleigh Dickinson University (PublicMind),92,19,yes,yes,Live,no,-0.7,A/B,D +0.0,95%,5%,3.9,5.4,-1.3,-1.4,-0.4,18,D +0.1,D +2.8,4.5,0.3,10/16/14
16,CBS News/The New York Times,36,62,yes,yes,Live,no,-0.7,A,D +0.4,76%,23%,4.3,5.5,-1.0,-1.0,-0.6,51,D +0.7,D +1.5,4.1,0.23,10/16/18
17,Grove Insight,129,29,no,yes,Live,no,-0.7,A/B,D +0.5,90%,7%,3.0,5.8,-2.6,-3.0,-1.4,29,D +1.1,D +3.4,3.8,0.67,11/2/12
18,Behavior Research Center (Rocky Mountain Poll),27,8,yes,yes,Live,no,-0.7,A/B,D +0.1,75%,0%,3.1,6.4,-3.1,-2.7,-0.3,6,D +1.0,R +1.4,8.1,0.0,10/22/08
19,Western New England University,380,10,yes,yes,Live,no,-0.6,A/B,R +0.3,100%,10%,4.3,6.4,-1.9,-2.5,-0.7,9,R +1.1,D +2.2,2.6,1.46,10/19/18
20,Suffolk University,323,88,yes,yes,Live,no,-0.6,A,D +0.6,79%,24%,5.1,6.7,-1.4,-0.6,-0.5,52,D +1.0,D +1.8,5.7,0.0,2/28/20
21,IBD/TIPP,144,27,yes,partial,Online/Live,no,-0.6,A/B,R +0.8,78%,4%,2.2,4.1,-1.6,-1.6,-0.7,27,R +1.9,R +1.6,3.4,0.25,10/30/18
22,Los Angeles Times,172,36,yes,yes,Live,no,-0.6,A/B,R +0.1,85%,22%,4.6,6.4,-1.6,-0.8,-0.3,23,R +0.3,D +0.8,5.1,0.15,10/26/08
23,Michigan State University,463,2,yes,yes,Live,no,-0.6,A/B,R +0.0,100%,0%,1.0,9.6,-8.4,-7.7,-0.7,2,R +0.5,R +1.5,,0.0,10/18/18
24,University of Connecticut,347,7,yes,yes,Live,no,-0.6,A/B,R +0.3,93%,14%,4.0,5.4,-1.2,-1.4,-0.2,7,R +2.3,R +2.0,8.0,0.0,10/20/08
25,University of Cincinnati (Ohio Poll),346,39,yes,yes,Live,no,-0.6,A/B,R +1.3,94%,21%,3.9,5.7,-1.7,-0.9,-0.4,30,R +3.2,R +2.4,3.4,0.46,11/2/12
26,Temple University,336,6,yes,yes*,Live*,no,-0.6,A/B,R +0.2,100%,17%,3.7,5.2,-1.3,-1.4,-0.2,5,R +2.5,D +0.7,3.7,0.08,10/23/08
27,Fox News/Beacon Research/Shaw & Co. Research,103,40,yes,yes,Live,no,-0.5,A-,D +1.4,71%,38%,5.6,5.8,0.0,-0.5,-0.3,25,D +2.7,D +1.0,4.8,0.0,10/29/18
28,Castleton University,45,3,yes,yes,Live,no,-0.5,A/B,,100%,33%,9.9,9.5,0.6,-1.0,-0.1,0,,,,0.0,2/10/16
29,KRC/Communications Research,160,22,yes,yes*,Live*,no,-0.5,A/B,D +0.1,91%,41%,7.1,7.4,-0.1,-0.5,-0.1,11,D +0.7,D +2.5,6.5,0.0,1/26/04
30,Wirthlin Worldwide,387,4,yes,yes*,Live*,no,-0.5,A/B,R +0.2,75%,25%,4.5,6.1,-1.3,-1.6,-0.1,4,R +3.9,R +5.6,5.3,0.14,10/22/00
31,Indiana University,149,2,yes,yes,Live,no,-0.5,A/B,D +0.0,100%,0%,0.9,6.1,-5.0,-4.7,-0.1,2,D +0.9,D +4.1,,0.0,10/18/04
32,Siena College,305,53,yes,partial,Online/Live,no,-0.5,A-,R +0.7,90%,23%,4.9,5.4,-0.2,-0.9,-0.6,49,R +1.1,R +1.1,4.7,0.2,10/30/18
33,Louis Harris & Associates,173,2,yes,yes*,Live*,no,-0.5,A/B,D +0.0,100%,0%,0.9,5.0,-3.9,-5.2,-0.1,2,D +0.9,D +5.4,5.5,0.0,10/31/98
34,Market Strategies International,189,1,yes,yes*,Live*,no,-0.5,A/B,R +0.0,100%,0%,1.1,6.3,-5.0,-5.4,-0.1,1,R +1.1,R +4.6,3.6,1.27,10/28/02
35,NBC News/The Wall Street Journal,221,31,yes,yes,Live,no,-0.4,A-,D +0.6,73%,10%,4.0,5.2,-1.0,-0.7,-0.3,26,D +1.2,D +0.7,3.1,0.5,11/2/18
36,University of Florida,349,1,yes,yes,Live,no,-0.4,A/B,D +0.0,50%,0%,1.1,4.5,-3.3,-1.0,0.0,1,D +1.1,R +0.1,1.4,1.2,10/26/14
37,Gordon S. Black Corp.,123,2,yes,yes*,Live*,no,-0.4,A/B,R +0.1,100%,50%,6.4,4.4,2.1,0.5,0.0,2,R +6.4,R +1.3,6.0,0.0,10/18/98
38,Fox News/Opinion Dynamics Corp.,104,34,yes,yes*,Live*,no,-0.4,A/B,R +0.3,72%,12%,3.9,5.1,-1.1,-0.3,-0.1,28,R +0.9,R +1.6,4.1,0.15,10/27/10
39,Yankelovich Partners Inc.,390,7,yes,yes*,Live*,no,-0.4,A/B,R +0.0,50%,43%,8.1,7.1,1.2,0.2,0.0,3,R +1.0,R +1.8,4.3,0.23,10/26/00
40,Emerson College,88,165,yes,no,IVR/Online/Text,no,-0.4,A-,D +0.3,80%,24%,5.4,6.2,-0.6,-0.7,-0.6,123,D +0.4,R +1.3,5.2,0.05,3/12/20
41,Harvard University,135,1,yes,yes*,Live*,no,-0.4,A/B,D +0.1,0%,0%,6.8,6.2,0.8,0.7,0.0,1,D +6.8,D +1.5,2.0,2.69,10/26/02
42,Public Policy Institute of California,262,16,yes,yes,Live,no,-0.3,A/B,R +1.0,100%,25%,5.2,5.5,-0.1,0.0,0.0,10,R +4.4,R +1.1,,0.0,2/12/20
43,University of Illinois at Chicago,352,1,yes,yes*,Live*,no,-0.3,A/B,R +0.2,100%,100%,14.1,5.3,8.9,7.2,0.1,1,R +14.1,R +5.1,,0.0,10/16/98
44,Abt Associates,7,10,yes,yes,Live,no,-0.3,A/B,D +0.8,90%,20%,3.8,5.1,-1.1,-0.3,-0.1,9,D +3.3,D +0.3,4.0,0.4,6/7/17
45,Winthrop University,386,2,yes,yes,Live,no,-0.3,A/B,D +0.0,100%,50%,12.0,6.4,5.8,0.6,0.1,1,D +0.2,R +1.2,3.6,0.27,2/14/20
46,RKM Research and Communications Inc.,272,34,no,yes,Live,no,-0.3,A-,R +0.1,87%,24%,5.3,6.9,-1.4,-1.2,-0.6,20,R +0.5,R +1.5,4.5,0.05,2/7/20
47,Georgetown University (Battleground),114,35,yes,yes,Live,no,-0.3,A/B,R +0.6,57%,11%,3.4,4.6,-1.0,-0.3,-0.1,35,R +1.4,R +1.6,3.3,0.43,11/5/12
48,Princeton Survey Research Associates International,258,35,yes,yes,Live,no,-0.3,A/B,D +0.5,63%,31%,5.1,5.1,0.2,0.1,0.1,33,D +1.2,D +0.2,4.7,0.0,10/25/14
49,Market Shares Corp.,187,25,yes,yes,Live,no,-0.3,A/B,R +1.1,84%,28%,5.8,5.5,0.5,-0.1,0.0,22,R +4.1,R +1.9,4.6,0.36,10/22/12
50,Mason-Dixon Polling & Strategy,197,433,no,yes,Live,no,-0.3,B+,R +0.6,87%,23%,5.1,5.7,-0.4,-0.6,-0.6,376,R +0.7,R +1.2,5.1,0.09,11/6/19
51,CNN/Opinion Research Corp.,37,103,yes,yes,Live,no,-0.2,B+,D +0.0,72%,25%,5.5,6.2,-0.4,-0.2,-0.2,71,D +0.0,D +0.1,5.0,0.09,10/30/16
52,Research & Polling Inc.,280,32,no,yes,Live,no,-0.2,B+,R +0.9,84%,9%,4.5,6.0,-1.2,-1.5,-0.7,31,R +1.8,R +0.5,3.2,0.56,10/29/18
53,Quinnipiac University,267,207,yes,yes,Live,no,-0.2,B+,D +0.2,83%,23%,4.6,5.6,-0.8,-0.2,-0.1,153,D +0.2,D +0.4,5.2,0.0,11/1/18
54,EPIC-MRA,84,49,no,yes,Live,no,-0.2,B+,R +0.2,78%,24%,5.5,6.1,-0.4,-0.8,-0.5,42,R +0.4,D +0.6,5.3,0.13,3/5/20
55,Elway Research,87,21,no,partial,Live/Text,no,-0.2,A/B,D +0.8,90%,5%,3.9,6.3,-2.2,-2.6,-1.0,20,D +2.1,D +3.7,4.2,0.37,10/21/16
56,St. Norbert College,313,12,no,yes,Live,no,-0.2,A/B,D +0.2,88%,0%,3.9,6.7,-2.7,-2.4,-0.6,11,D +0.9,D +3.0,5.3,0.22,10/20/14
57,University of North Florida,360,9,yes,partial,Online/Live,no,-0.1,A/B,D +0.7,44%,33%,4.0,5.9,-1.7,-0.4,-0.1,6,D +3.9,D +1.4,4.0,0.04,3/8/20
58,Elon University,86,8,yes,partial,Online/Live,no,-0.1,A/B,D +0.5,56%,13%,3.2,4.6,-1.3,-1.0,-0.2,8,D +2.1,D +0.8,3.6,0.57,10/25/16
59,National Research Inc.,225,10,no,yes,Live,no,-0.1,A/B,R +0.5,75%,20%,5.1,6.8,-1.5,-1.7,-0.4,7,R +3.3,R +5.5,5.9,0.0,3/5/16
60,Blum & Weprin Associates,32,19,no,yes,Live,no,-0.1,A/B,R +0.7,95%,21%,4.8,5.2,-0.2,-2.1,-0.5,17,R +3.4,D +0.9,4.6,0.04,10/25/10
61,Public Religion Research Institute,428,1,yes,partial,Online/Live,no,-0.1,A/B,D +0.0,100%,0%,0.4,5.1,-4.4,-2.9,-0.1,1,D +0.4,D +1.7,2.0,1.23,10/19/18
62,Middle Tennessee State University,208,5,yes,yes,Live,no,-0.1,A/B,D +0.6,100%,60%,9.3,6.0,3.5,2.1,0.3,4,D +4.6,R +5.0,4.5,0.21,10/24/14
63,Fleming & Associates,96,17,no,yes,Live,no,-0.1,A/B,R +0.4,100%,12%,5.0,6.3,-1.1,-1.7,-0.6,15,R +1.4,R +0.2,3.7,0.63,10/22/18
64,University of Massachusetts Lowell,355,19,yes,no,Online,no,-0.1,A/B,R +0.2,74%,37%,7.2,6.9,0.5,-0.6,-0.3,9,R +0.8,R +0.6,5.5,0.0,2/16/20
65,Cygnal,67,13,no,partial,IVR/Online/Live/Text,no,-0.1,A/B,D +1.0,92%,0%,3.0,5.6,-2.4,-3.0,-1.1,13,D +2.6,R +1.0,3.5,0.76,11/8/19
66,Angus Reid Global,13,30,no,no,Online,no,0.0,B+,R +1.2,93%,7%,3.2,5.6,-2.1,-2.6,-1.2,30,R +2.6,D +0.8,3.1,0.85,11/3/16
67,Public Opinion Strategies,260,64,yes,partial,Online/Live,no,0.0,B+,R +1.5,70%,22%,5.7,6.1,-0.2,-0.4,-0.2,62,R +2.4,R +4.1,4.3,0.33,10/16/18
68,Strategic Vision LLC,320,133,no,yes*,Live*,yes,0.0,F,R +1.5,89%,18%,3.8,5.1,-1.1,-0.4,-0.3,110,R +2.2,R +2.1,4.4,0.12,11/1/08
69,"North Star Opinion Research/Ayres, McHenry & Associates",233,8,no,yes,Live,no,0.0,A/B,R +0.6,94%,25%,5.5,6.7,-1.0,-3.5,-0.7,6,R +3.5,R +6.1,4.4,0.37,10/23/16
70,American Viewpoint,10,8,no,yes,Live,no,0.0,B/C,R +0.8,69%,0%,4.2,5.7,-1.3,-1.6,-0.3,8,R +3.5,R +3.3,6.3,0.0,10/17/18
71,Landmark Communications,166,39,no,partial,IVR/Live,no,0.0,B,D +1.5,82%,23%,4.8,5.4,-0.5,-0.8,-0.4,33,D +2.8,R +0.5,4.5,0.0,6/19/17
72,Ward Research (Honolulu Star-Advertiser),375,15,no,yes,Live,no,0.0,B/C,R +0.4,80%,33%,5.9,6.0,0.0,-1.5,-0.4,15,R +1.4,D +1.8,3.9,0.49,10/15/14
73,University of Arkansas,345,6,no,yes,Live,no,0.0,B/C,D +0.7,100%,0%,4.1,5.3,-1.0,-2.6,-0.5,6,D +4.1,R +3.9,6.9,0.0,10/22/16
74,Harstad Strategic Research Inc.,134,10,no,yes,Live,no,0.0,B/C,D +0.6,75%,10%,3.8,5.9,-1.9,-1.6,-0.3,10,D +2.6,D +3.3,5.1,0.0,10/21/14
75,RT Strategies,275,42,yes,yes,Live,no,0.1,B/C,D +1.0,69%,40%,5.9,4.8,1.3,0.9,0.4,42,D +2.2,D +3.4,8.6,0.0,10/28/06
76,Harper Polling,132,11,no,partial,IVR/Live,no,0.1,B/C,D +0.1,91%,18%,3.6,6.0,-2.3,-1.9,-0.6,8,D +0.5,R +1.1,5.3,0.0,11/3/16
77,University of South Alabama,361,9,no,yes,Live,no,0.1,B/C,R +0.4,100%,11%,3.3,5.3,-1.8,-2.0,-0.3,9,R +2.6,R +2.0,7.2,0.0,10/14/10
78,Public Policy Polling,263,423,no,no,IVR/Text,no,0.1,B,D +0.3,80%,31%,5.0,5.5,-0.3,-0.4,-0.4,294,D +0.4,D +0.9,4.7,0.0,2/25/20
79,GQR Research (GQRR),126,57,yes,partial,Online/Live,no,0.1,B,D +2.1,56%,14%,4.5,5.3,-0.6,0.1,0.0,55,D +3.6,D +3.4,4.1,0.13,10/24/18
80,University of Wisconsin (Badger Poll),365,7,yes,yes*,Live*,no,0.1,B/C,D +0.4,86%,29%,12.2,6.0,6.4,3.6,0.4,6,D +4.1,D +3.8,4.0,0.89,10/25/08
81,Gallup,112,84,yes,yes,Live,no,0.1,B,R +0.4,69%,30%,4.3,5.0,-0.6,0.6,0.4,69,R +0.7,R +1.4,4.1,0.0,10/22/18
82,Rutgers University,295,14,yes,yes,Live,no,0.1,B/C,R +0.0,86%,14%,5.7,5.6,0.3,1.8,0.5,14,R +0.1,D +0.9,6.1,0.0,10/16/18
83,Pharos Research Group,254,33,no,yes,Live,yes,0.1,F,D +0.8,92%,15%,3.8,4.9,-1.0,-0.4,-0.2,33,D +1.6,D +1.1,4.1,0.22,10/27/12
84,Keating Research,161,5,no,yes,Live,no,0.1,B/C,D +0.1,80%,0%,2.4,5.0,-2.4,-2.1,-0.3,5,D +0.9,D +2.8,3.7,0.62,11/3/16
85,American Research Group,9,273,yes,yes,Live,no,0.2,B,R +0.2,75%,39%,7.4,7.4,0.2,0.3,0.2,82,R +0.2,R +1.7,6.9,0.0,2/9/20
86,Montana State University Billings,216,7,no,yes,Live,no,0.2,B/C,D +0.3,57%,0%,3.6,6.3,-2.5,-4.1,-0.5,7,D +3.0,D +2.5,,0.0,10/18/08
87,Greenberg Quinlan Rosner/American Viewpoint,127,8,no,yes,Live,no,0.2,B/C,R +0.7,100%,50%,4.4,4.9,-0.3,-0.8,-0.2,6,R +4.2,D +1.5,5.4,0.0,10/26/16
88,Financial Dynamics,95,15,no,yes*,Live*,no,0.2,B/C,R +0.4,100%,0%,2.6,4.7,-1.9,-1.3,-0.3,15,R +1.7,R +2.2,2.4,0.63,11/1/08
89,University of Washington,364,9,no,yes,Live,no,0.2,B/C,D +0.1,100%,0%,3.6,5.5,-1.7,-1.6,-0.3,9,D +0.3,D +3.4,4.8,0.74,10/25/12
90,Market Research Institute Inc.,186,11,no,yes*,Live*,no,0.2,B/C,D +0.1,100%,27%,4.2,5.3,-1.0,-1.6,-0.2,11,D +0.6,D +0.4,5.1,0.35,10/24/04
91,Iowa State University,153,3,no,yes,Live,no,0.2,B/C,,67%,33%,6.2,8.9,-2.4,-3.7,-0.4,0,,,,0.0,1/14/16
92,McKeon & Associates,202,3,no,yes,Live,no,0.2,B/C,D +0.2,67%,33%,2.9,5.9,-2.9,-4.1,-0.4,2,D +3.0,D +0.5,12.8,0.0,3/12/16
93,Christopher Newport University,50,10,no,yes,Live,no,0.2,B/C,D +0.7,100%,30%,5.9,5.1,1.0,-0.4,-0.1,9,D +2.7,D +2.1,5.4,0.0,2/14/20
94,Tarrance Group,333,28,no,yes,Live,no,0.2,B/C,R +0.9,82%,25%,6.2,6.6,-0.2,-0.1,0.0,24,R +2.4,R +6.0,7.2,0.0,10/21/18
95,Victory Research,437,2,no,yes,Live,no,0.2,B/C,D +0.0,100%,0%,2.0,5.9,-3.7,-4.6,-0.4,1,D +0.3,,,0.0,3/8/20
96,SSRS,297,18,yes,yes,Live,no,0.2,B/C,D +1.2,50%,22%,5.6,5.3,0.5,1.3,0.6,16,D +2.9,D +2.7,5.9,0.0,2/24/20
97,Orion Strategies,246,4,no,yes,Live,no,0.2,B/C,D +0.1,100%,25%,3.2,6.6,-3.2,-3.9,-0.3,3,D +1.5,D +6.5,2.7,0.35,10/12/10
98,CJ&N,63,4,no,yes*,Live*,no,0.2,B/C,D +0.1,100%,25%,3.5,7.6,-3.9,-3.3,-0.3,1,D +3.2,,,0.0,10/26/10
99,Marshall Marketing & Communications,196,4,no,yes*,Live*,no,0.3,B/C,R +0.2,100%,0%,3.4,6.6,-3.1,-1.9,-0.2,3,R +2.9,R +1.2,,0.0,10/21/08
100,YouGov,391,416,no,no,Online,no,0.3,B,D +0.4,88%,30%,4.9,5.2,-0.1,-0.2,-0.2,357,D +0.4,D +0.2,4.6,0.0,3/7/20