Source: Gallup
Date McCain Obama Sample size Margin of error
2008-03-11 44% 46% 4372 3%
2008-03-16 46% 44% 4390 3%
2008-03-21 46% 44% 4376 3%
2008-03-27 46% 44% 4398 3%
2008-04-04 46% 44% 4431 3%
2008-04-06 45% 45% 4380 3%
2008-04-11 43% 46% 4400 3%
2008-04-16 44% 46% 4380 3%
2008-04-21 45% 45% 4367 3%
2008-05-01 48% 42% 4381 3%
2008-05-06 45% 46% 4382 3%
2008-05-11 44% 51% 4370 3%
2008-05-16 47% 44% 4385 3%
2008-05-21 44% 47% 4446 3%
2008-05-27 46% 45% 4411 3%
2008-06-01 46% 46% 4378 3%
2008-06-09 41% 48% 2633 3%
2008-06-15 42% 46% 2607 3%
2008-06-22 43% 46% 2608 3%
2008-07-02 43% 47% 2641 3%
2008-07-04 45% 45% 4383 3%
2008-07-12 43% 46% 2635 2%
2008-07-18 43% 45% 2657 3%
2008-07-24 41% 47% 2695 2%
2008-08-02 44% 45% 2684 2%
2008-08-08 42% 47% 2686 2%
2008-08-14 44% 44% 2690 2%
2008-08-17 43% 46% 2660 2%
2008-08-23 45% 45% 2625 2%
2008-08-26 44% 45% 2724 2%
2008-08-28 42% 48% 2723 2%
2008-08-29 41% 49% 2709 2%
2008-09-01 42% 50% 2772 2%
2008-09-04 44% 48% 2779 2%
2008-09-07 49% 44% 2733 2%
2008-09-09 48% 43% 2714 2%
2008-09-10 48% 44% 2748 3%
2008-09-13 47% 45% 2787 2%
2008-09-14 47% 45% 2805 2%
2008-09-15 47% 46% 2800 2%
2008-09-16 45% 47% 2787 2%
2008-09-17 44% 48% 2815 2%
2008-09-18 44% 49% 2796 2%
2008-09-19 44% 50% 2756 2%
2008-09-21 44% 48% 2740 2%
2008-09-22 44% 47% 2740 2%
2008-09-23 44% 47% 2712 2%
2008-09-24 46% 46% 2731 2%
2008-09-25 45% 48% 2736 2%
2008-09-26 44% 49% 2759 2%
2008-09-27 42% 50% 2719 2%
2008-09-28 42% 50% 2732 2%
2008-09-29 43% 49% 2729 2%
2008-09-30 44% 48% 2746 2%
2008-10-01 43% 48% 2747 2%
2008-10-02 42% 49% 2728 2%
2008-10-03 42% 50% 2703 2%
2008-10-04 43% 50% 2728 2%
2008-10-05 42% 50% 2744 2%
2008-10-06 42% 51% 2747 2%
2008-10-07 41% 52% 2747 2%
2008-10-08 41% 52% 2761 2%
2008-10-11 43% 50% 2783 2%
2008-10-12 41% 51% 2728 2%
2008-10-13 42% 51% 2793 2%
2008-10-14 43% 50% 2785 2%
2008-10-15 43% 49% 2786 2%
2008-10-16 43% 50% 2805 2%
2008-10-18 42% 52% 2277 2%
2008-10-19 41% 52% 2774 2%
2008-10-20 41% 52% 2784 2%
2008-10-21 42% 51% 2799 2%
2008-10-22 43% 50% 2788 2%
2008-10-23 42% 52% 2787 2%
2008-10-24 42% 51% 2793 2%
2008-10-25 42% 51% 2794 2%
2008-10-26 42% 52% 2797 2%
2008-10-27 43% 50% 2781 2%
2008-10-28 42% 51% 2789 2%
2008-10-29 42% 50% 2800 2%
2008-10-30 41% 52% 2825 2%
2008-10-31 41% 52% 2847 2%
2008-11-02 40% 53% 2824 2%
Source: Rasmussen
Date McCain Obama Sample size Margin of error
2008-03-13 45% 44% 1600 3%
2008-03-21 51% 41% 1600 3%
2008-03-30 46% 41% 1600 3%
2008-04-06 46% 45% 1600 3%
2008-04-14 47% 43% 1600 3%
2008-04-22 47% 44% 1600 3%
2008-05-04 43% 47% 1600 3%
2008-05-16 45% 44% 1600 3%
2008-05-28 47% 42% 1600 3%
2008-06-10 44% 49% 3000 3%
2008-06-16 44% 48% 3000 3%
2008-06-22 43% 49% 3000 3%
2008-07-01 44% 49% 3000 3%
2008-07-13 46% 47% 3000 3%
2008-07-19 45% 47% 3000 3%
2008-07-22 45% 47% 3000 3%
2008-07-28 46% 47% 3000 3%
2008-08-03 47% 46% 3000 3%
2008-08-09 46% 48% 3000 3%
2008-08-15 45% 46% 3000 3%
2008-08-18 45% 47% 3000 3%
2008-08-24 45% 48% 3000 3%
2008-08-27 47% 47% 3000 3%
2008-08-30 46% 49% 3000 3%
2008-09-02 45% 50% 3000 3%
2008-09-05 46% 49% 3000 3%
2008-09-08 48% 48% 3000 2%
2008-09-09 47% 48% 3000 2%
2008-09-11 49% 46% 3000 3%
2008-09-14 49% 47% 3000 2%
2008-09-15 48% 47% 3000 2%
2008-09-16 48% 47% 3000 2%
2008-09-17 48% 48% 3000 2%
2008-09-18 48% 48% 3000 2%
2008-09-19 47% 48% 3000 2%
2008-09-21 47% 48% 3000 2%
2008-09-22 48% 48% 3000 2%
2008-09-23 48% 48% 3000 2%
2008-09-24 47% 49% 3000 2%
2008-09-25 46% 49% 3000 2%
2008-09-26 45% 50% 3000 2%
2008-09-27 44% 50% 3000 2%
2008-09-28 44% 50% 3000 2%
2008-09-29 45% 50% 3000 2%
2008-09-30 45% 51% 3000 2%
2008-10-01 44% 51% 3000 2%
2008-10-02 44% 51% 3000 2%
2008-10-03 45% 51% 3000 2%
2008-10-04 44% 51% 3000 2%
2008-10-05 44% 52% 3000 2%
2008-10-06 44% 52% 3000 2%
2008-10-07 45% 51% 3000 2%
2008-10-08 45% 50% 3000 2%
2008-10-09 45% 50% 3000 2%
2008-10-11 45% 51% 3000 2%
2008-10-12 45% 50% 3000 2%
2008-10-13 45% 50% 3000 2%
2008-10-14 45% 50% 3000 2%
2008-10-15 46% 50% 3000 2%
2008-10-15 45% 50% 3000 2%
2008-10-16 46% 50% 3000 2%
2008-10-17 45% 50% 3000 2%
2008-10-18 45% 51% 3000 2%
2008-10-19 46% 50% 3000 2%
2008-10-20 46% 50% 3000 2%
2008-10-21 45% 51% 3000 2%
2008-10-22 45% 52% 3000 2%
2008-10-23 45% 52% 3000 2%
2008-10-24 44% 52% 3000 2%
2008-10-25 44% 52% 3000 2%
2008-10-26 46% 51% 3000 2%
2008-10-27 46% 51% 3000 2%
2008-10-28 47% 50% 3000 2%
2008-10-29 46% 51% 3000 2%
2008-10-30 47% 51% 3000 2%
2008-10-31 46% 51% 3000 2%
2008-11-01 46% 51% 3000 2%
2008-11-02 46% 52% 3000 2%
2008-11-03 46% 52% 3000 2%
Source: Wash. Post
Date McCain Obama Sample size Margin of error
2008-03-02 42% 53% 1126 3%
2008-04-13 44% 49% 1197 3%
2008-05-11 43% 47% 1122 3%
2008-06-15 42% 48% 1125 3%
2008-07-13 46% 49% 1119 3%
2008-08-22 45% 49% 916 3%
2008-09-07 46% 47% 961 3%
2008-09-22 43% 52% 1082 3%
2008-09-29 46% 50% 1271 3%
2008-10-05 45% 51% 772 3%
2008-10-11 43% 53% 766 3%
2008-10-19 44% 53% 1336 2.5%
2008-10-20 44% 53% 1324 2%
2008-10-21 43% 54% 1330 2%
2008-10-22 43% 54% 1335 2%
2008-10-23 44% 53% 1331 2.5%
2008-10-24 44% 53% 1331 2.5%
2008-10-25 45% 52% 1308 2.5%
2008-10-26 45% 52% 1314 3.5%
2008-10-27 45% 52% 1301 2.5%
2008-10-28 44% 52% 1316 2.5%
2008-10-29 44% 52% 1327 2.5%
2008-10-30 44% 53% 1580 2.5%
2008-11-01 43% 54% 2172 2%
2008-11-02 44% 53% 2470 2.5%
Source: Ipsos
Date McCain Obama Sample size Margin of error
2008-04-09 45% 45% 1005 3%
2008-04-27 44% 46% 1001 3%
2008-05-05 42% 46% 755 3%
2008-06-11 39% 49% 2000 3%
2008-08-04 41% 47% 833 3%
2008-09-09 46% 45% 876 3%
2008-09-15 45% 45% 1046 3%
2008-09-22 43% 44% 923 3%
2008-09-29 42% 46% 1007 3%
2008-10-06 39% 48% 1036 3%
2008-10-20 42% 50% 773 3%
2008-10-27 43% 48% 831 3.5%
2008-11-01 46% 53% 760 3.5%
This data was collated by independent polling resource website Pollster.com . RV indicates those polled were registered voters. LV indicates a sample of likely voters. Full data from these and other polls, including detailed methodology and margin of error adjustments, can be found on the Pollster.com page for the 2008 National Presidential General Election .
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