Nationwide opinion polling for the 2008 United States presidential election

Scientific, nationwide public opinion polls conducted relating to the 2008 United States presidential election include:

Presidential election Two-way contest: Barack Obama vs John McCain

Poll SourceDate administeredBarack ObamaJohn McCainLead marginSample sizeMargin of errorMarist CollegeNovember 3, 200852%43%9804 LV±3.5%American Research GroupNovember 1–3, 200853%45%81,200 LV±3%Marist CollegeNovember 2, 200853%44%9635 LV±4%NBC News/Wall Street JournalNovember 1 –2, 200851%43%81,011 LV±3.1%Fox News/Opinion Dynamics CorporationNovember 1–2, 200850%43%7971 LV±3%CBS NewsOctober 31–November 2, 200851%42%9714 LVNot reportedReuters/C-SPAN/Zogby International (Daily Tracking)October 31–November 2, 200850.9%43.8%7.1Not reportedNot reportedInvestor's Daily Business/TIPP (Daily Tracking)October 31–November 2, 200847.5%43%4.5Not reportedNot reportedGallup (Daily Tracking Model II)October 31 – November 2, 200853%42%112,458 LV±2%CNN/Opinion Research CorporationOctober 30 – November 1, 200853%46%7714 LV±3.5%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 30–November 1, 200851%46%53,000 LV±2%Pew Research CenterOctober 29 – November 1, 200849%42%72,587 LV±2.5%Polimetrix/YouGovOctober 18–November 1, 200851%45%631,148 RVNot reportedDiageo/The Hotline/Financial Dynamics (Daily Tracking)October 29–31, 200851%44%7876 LV±3.3%ABC News/Washington Post (Daily Tracking)ABC News/Washington Post (Daily Tracking)October 28–31, 200853%44%91,896 LVNot reportedGallup (Daily Tracking Model II)October 28–30, 200852%43%92,459 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 28–30, 200850.1%43.1%71,201 LV±2.9%Investor's Business Daily/TIPP (Daily Tracking)October 28–30, 200847.9%43.4%4.5Not reportedNot reportedMarist CollegeOctober 29, 200850%43%7543 LV±4.5%Fox News/Opinion Dynamics CorporationOctober 28–29, 200847%44%3924 LV±3%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 27–29, 200851%46%53,000 LV±2%CBS News/New York TimesOctober 25–29, 200852%41%111,005 LVNot reportedDiageo/The Hotline/Financial Dynamics (Daily Tracking)October 26–28, 200849%42%7870 LV±3.3%The Economist/YouGovOctober 25–27, 200849%42%7981 RVNot reportedGallup (Daily Tracking Model II)October 25–27, 200851%44%72,396 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 25–27, 200849%44.7%4.31,202 LV±2.9%ABC News/Washington Post (Daily Tracking)October 24–27, 200852%45%71,301 LVNot reportedMcClatchy/IpsosOctober 23–27, 200850%45%5831 LV±3.4%Investor's Business Daily/TIPP (Daily Tracking)October 23–27, 200846.7%43.7%3Not reportedNot reportedGeorge Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)October 21–23, 26–27, 200849%45%41,000 LV±3.1%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 24–26, 200851%46%53,000 LV±2%Diageo/The Hotline/Financial Dynamics (Daily Tracking)October 23–25, 200850%42%8878 LV±3.3%Gallup (Daily Tracking Model II)October 22–24, 200851%43%82,358 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 21–24, 200851.1%41.6%9.51,203 LV±2.9%Newsweek/Princeton Survey Research Associates InternationalOctober 22–23, 200853%41%12882 LV±4%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 21–23, 200852%45%73,000 LV±2%ABC News/Washington Post (Daily Tracking)October 20–23, 200853%44%91,321 LVNot reportedDiageo/The Hotline/Financial Dynamics (Daily Tracking)October 20–22, 200848%43%5769 LV±3.5%CBS News/New York TimesOctober 19–22, 200854%41%13771 LVNot reportedBig TenOctober 19–22, 200852%43%91,014 LVNot reportedInvestors Business Daily/TIPP (Daily Tracking)October 18–22, 200844.8%43.7%1.11,072 LV±3%The Economist/YouGovOctober 20–21, 200849%41%8998 RV±4%Fox News/Opinion Dynamics CorporationOctober 20–21, 200849%40%9936 LV±3%Gallup (Daily Tracking Model II)October 19–21, 200852%44%82,420 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 18–20, 200850.3%42.4%7.91,214 LV±2.9%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 18–20, 200850%46%43,000 LV±2%American Research GroupOctober 18–20, 200849%45%41,200 LV±3%NBC News/Wall Street JournalOctober 17–20, 200852%42%101,159 RV±2.9%George Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)October 14–16, 19–20, 200848%47%11,000 LV±3.1%CNN/Opinion Research CorporationOctober 17–19, 200851%46%5746 LV±3.5%Diageo/The Hotline/Financial Dynamics (Daily Tracking)October 17–19, 200847%42%7789 LV±3.5%Pew Research CenterOctober 16–19, 200853%39%142,382 LV±2.5%ABC News/Washington Post (Daily Tracking)October 16–19, 200853%44%91,366 LVNot reportedHearst-Argyle/Franklin & Marshall CollegeOctober 13–19, 200850%45%5Not reported±3.5%Gallup (Daily Tracking Model II)October 16–18, 200851%44%72,590 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 15–17, 200848.3%44.4%3.91,209 LV±2.9%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 15–17, 200850%45%53,000 LV±2%Investor's Business Daily/TIPP (Daily Tracking)October 13–17, 200847.2%39.8%7.4Not reportedNot reportedDiageo/The Hotline/Financial Dynamics (Daily Tracking)October 14–16, 200850%40%10804 LV±3.5%Gallup (Daily Tracking Model II)October 13–15, 200851%45%62,312 LV±2%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 12–14, 200850%45%53,000 LV±2%Reuters/C-SPAN/Zogby International (Daily Tracking)October 11–14, 200848.2%44.4%3.81,210 LV±2.9%Diageo/The Hotline/Financial Dynamics (Daily Tracking)October 11–13, 200848%42%6829 LV±3.4%American Research GroupOctober 11–13, 200850%45%51,200 LV±3%Los Angeles Times/BloombergOctober 10–13, 200850%41%91,030 LV±3%CBS News/New York TimesOctober 10–13, 200853%39%14699 LVNot reportedGeorge Washington University/Tarrance Group/Lake Research Partners (Daily Tracking)October 8–9, 12–13, 200853%40%13800 LV±3.5%The Economist/YouGovOctober 11–12, 200848%42%6998 RV±4%USA Today/Gallup (Model II)October 10–12, 200852%45%71,030 LV±3%Pew Research CenterOctober 9–12, 200849%42%71,191 LVNot reportedDemocracy Corps/Greenberg Quinlan Rosner (D)October 8−12, 200851%42%91,000 LVNot reportedInvestor's Business Daily/TIPP (Daily Tracking)October 6–12, 200844.8%42.7%2.1825 LV±3.3%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 9–11, 200851%45%63,000 LV±2%ABC News/Washington PostOctober 8–11, 200853%43%10766 LV±3.5%Diageo/The Hotline/Financial DynamicsOctober 8–10, 200850%40%10808 LV±3.5%Reuters/C-SPAN/Zogby International (Daily Tracking)October 7–10, 200847.6%43.8%3.81,208 LV±2.9%Newsweek/Princeton Survey Research Associates InternationalOctober 8–9, 200852%41%111,035 RV±3.7%Fox News/Opinion Dynamics CorporationOctober 8–9, 200846%39%7900 RV±3%Rasmussen Reports/Pulse Opinion Research (Daily Tracking)October 6–8, 200850%45%53,000 LV±2%Diageo/The Hotline/Financial DynamicsOctober 5–7, 200845%44%1904 LV±3.3%Gallup (Daily Tracking)October 5–7, 200852%41%112,747 RV±2%George Washington University/Tarrance Group/Lake Research PartnersOctober 2,