Trend
Rasmussen
Gallup
FOX
CBS/NYT
NBC/WSJ
Bloomberg
Quinnipiac
Zogby
Gallup
Pew
IBD/TIPP
CBS
Time
AP/Ipsos
CNN
Date
8/20
8/20
8/20
8/19
8/18
8/18
8/17
8/16
8/10
8/10
8/10
8/05
8/04
8/04
7/29
Size
3000LV
2658LV
900RV
869RV
1005RV
1248RV
1547LV
1089LV
903RV
2414RV
925RV
906RV
808RV
1002RV
914RV
MoE
1.8%
1.9%
3.3%
3.3%
3.1%
2.8%
2.5%
3.0%
3.3%
2.0%
3.2%
3.3%
3.4%
3.1%
3.2%
Obama
48
45
42
45
45
45
47
41
45
46
43
45
46
48
51
McCain
46
44
39
42
42
43
42
46
38
43
38
39
41
42
44
Diff
2
1
3
3
3
2
5
(5)
7
3
5
6
5
6
7
Obama
45.0
44.4
44.8
44.6
44.6
44.8
44.4
44.0
45.0
45.6
46.6
47.0
48.0
47.0
46.8
McCain
42.6
42.0
41.6
43.0
42.2
42.4
41.4
40.8
39.8
40.6
40.8
43.0
44.2
44.0
43.8
|
Obama
51.4
51.4
51.9
50.9
51.4
51.4
51.7
51.9
53.1
52.9
53.3
52.2
52.1
51.6
51.7
Win Prob
93.3
92.4
86.7
70.5
81.0
83.5
91.5
89.3
96.7
99.8
97.8
91.0
87.9
85.2
84.2
Obama
52.44
52.56
52.96
52.04
52.52
52.48
52.92
53.12
54.12
53.88
54.16
53.00
52.68
52.40
52.44
McCain
47.56
47.44
47.04
47.96
47.48
47.52
47.08
46.88
45.88
46.12
45.84
47.00
47.32
47.60
47.56
Diff
4.9
5.1
5.9
4.1
5.0
5.0
5.8
6.2
8.2
7.8
8.3
6.0
5.4
4.8
4.9
Win Prob
99.6
99.6
96.2
88.5
94.5
96.0
98.9
98.0
99.3
100.0
99.4
96.5
93.6
93.6
93.0