Zogby Analytics

Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.

Historical polls: 395
Mean absolute error: 5.18percentage points
Historical bias: R+0.67
Represented cycles: 131998–2014
Current archive: 3canonical records
History span: Oct 13, 1998through Oct 30, 2014

Identity

Known names and relationships

Known aliases: No additional reviewed aliases
Organization type: Single canonical organization
Cycles represented: 1998 · 2000 · 2002 · 2003 · 2004 · 2005 · 2006 · 2008 · 2009 · 2010 · 2012 · 2013 · 2014

395 eligible historical polls across 13 represented cycles passed the published history identity checks. Historical bias is descriptive and is kept separate from sponsor or client affiliation.

Canonical 2025–2026 archive

Current-cycle records

Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.

3 shown · 3 total

Generic ballot

Dem +5.1

Dem 41.5% · Rep 36.4%

Field dates: Jul 1–Jul 4, 2026
Sample: 1,003 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Approval

Presidential approval · Approval

Disapprove +15.6

Approve 41.5% · Disapprove 57.1%

Field dates: Jul 1–Jul 4, 2026
Sample: 1,003 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Approval

Presidential approval · Approval

Disapprove +11.6

Approve 43.5% · Disapprove 55.1%

Field dates: Jan 2–Jan 7, 2026
Sample: 891 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

See this pollster in the Full Poll Archive →

Certified-result history

Eligible historical observations

50 shown · 395 total

Cycle	Race	Type	Field end	Sample	Poll	Result	Error
2004	2004_Pres-G_US	Pres-G	2004-11-01	955	R+0.3	R+2.5	D+2.2
2004	2004_Pres-G_WI	Pres-G	2004-10-31	601	D+6.0	D+0.4	D+5.6
2004	2004_Pres-G_PA	Pres-G	2004-10-31	601	D+4.0	D+2.5	D+1.5
2004	2004_Pres-G_OH	Pres-G	2004-10-31	601	R+6.0	R+2.1	R+3.9
2004	2004_Pres-G_NV	Pres-G	2004-10-31	601	R+5.0	R+2.6	R+2.4
2004	2004_Pres-G_MN	Pres-G	2004-10-31	601	D+6.0	D+3.5	D+2.5
2004	2004_Pres-G_MI	Pres-G	2004-10-31	601	D+6.0	D+3.4	D+2.6
2004	2004_Pres-G_IA	Pres-G	2004-10-31	601	D+5.0	R+0.7	D+5.7
2004	2004_Pres-G_FL	Pres-G	2004-10-31	599.5	D+0.5	R+5.0	D+5.5
2004	2004_Pres-G_FL	Pres-G	2004-10-31	601	0	R+5.0	D+5.0
2004	2004_Pres-G_CO	Pres-G	2004-10-31	600	R+2.0	R+4.7	D+2.7
2004	2004_Sen-G_WI	Sen-G	2004-10-30	601	D+23.0	D+11.2	D+11.8
2004	2004_Sen-G_PA	Sen-G	2004-10-30	600	R+21.0	R+10.6	R+10.4
2004	2004_Sen-G_OH	Sen-G	2004-10-30	602	R+24.0	R+27.7	D+3.7
2004	2004_Sen-G_NV	Sen-G	2004-10-30	603	D+24.0	D+26.4	R+2.4
2004	2004_Sen-G_IA	Sen-G	2004-10-30	602	R+46.0	R+42.3	R+3.7
2004	2004_Sen-G_FL	Sen-G	2004-10-30	599	0	R+1.1	D+1.1
2004	2004_Sen-G_CO	Sen-G	2004-10-30	600	D+8.0	D+4.8	D+3.2
2004	2004_Pres-G_US	Pres-G	2004-10-30	1,200	R+1.0	R+2.5	D+1.5
2004	2004_Pres-G_NM	Pres-G	2004-10-30	600	0	R+0.8	D+0.8
2004	2004_Sen-G_GA	Sen-G	2004-10-28	501	R+13.0	R+17.9	D+4.9
2004	2004_Pres-G_WV	Pres-G	2004-10-28	584	R+4.5	R+12.9	D+8.4
2004	2004_Pres-G_WI	Pres-G	2004-10-28	601	D+7.0	D+0.4	D+6.6
2004	2004_Pres-G_WA	Pres-G	2004-10-28	1,832	D+11.2	D+7.2	D+4.0
2004	2004_Pres-G_TN	Pres-G	2004-10-28	1,210	R+3.3	R+14.3	D+11.0
2004	2004_Pres-G_PA	Pres-G	2004-10-28	600	D+5.0	D+2.5	D+2.5
2004	2004_Pres-G_OR	Pres-G	2004-10-28	1,125	D+10.1	D+4.2	D+5.9
2004	2004_Pres-G_OH	Pres-G	2004-10-28	602	R+4.0	R+2.1	R+1.9
2004	2004_Pres-G_NV	Pres-G	2004-10-28	603	R+5.0	R+2.6	R+2.4
2004	2004_Pres-G_NM	Pres-G	2004-10-28	600	0	R+0.8	D+0.8
2004	2004_Pres-G_NH	Pres-G	2004-10-28	631	D+4.5	D+1.4	D+3.1
2004	2004_Pres-G_MO	Pres-G	2004-10-28	1,316	R+4.2	R+7.2	D+3.0
2004	2004_Pres-G_MN	Pres-G	2004-10-28	600	D+2.0	D+3.5	R+1.5
2004	2004_Pres-G_MI	Pres-G	2004-10-28	601	D+8.0	D+3.4	D+4.6
2004	2004_Pres-G_GA	Pres-G	2004-10-28	501	R+10.0	R+16.6	D+6.6
2004	2004_Pres-G_AR	Pres-G	2004-10-28	632	R+3.2	R+9.8	D+6.6
2004	2004_Pres-G_WI	Pres-G	2004-10-27	600	D+3.0	D+0.4	D+2.6
2004	2004_Pres-G_US	Pres-G	2004-10-27	1,200	0	R+2.5	D+2.5
2004	2004_Pres-G_PA	Pres-G	2004-10-27	600	0	D+2.5	R+2.5
2004	2004_Pres-G_OH	Pres-G	2004-10-27	600	D+3.0	R+2.1	D+5.1
2004	2004_Pres-G_NV	Pres-G	2004-10-27	600	R+5.0	R+2.6	R+2.4
2004	2004_Pres-G_MN	Pres-G	2004-10-27	603	R+1.0	D+3.5	R+4.5
2004	2004_Pres-G_MI	Pres-G	2004-10-27	601	R+2.0	D+3.4	R+5.4
2004	2004_Pres-G_IA	Pres-G	2004-10-27	600	D+1.0	R+0.7	D+1.7
2004	2004_Pres-G_FL	Pres-G	2004-10-27	601	R+1.0	R+5.0	D+4.0
2004	2004_Pres-G_CO	Pres-G	2004-10-27	602	D+1.0	R+4.7	D+5.7
2004	2004_Sen-G_WI	Sen-G	2004-10-26	601	D+23.0	D+11.2	D+11.8
2004	2004_Sen-G_SD	Sen-G	2004-10-26	800	R+2.0	R+1.1	R+0.8
2004	2004_Sen-G_PA	Sen-G	2004-10-26	600	R+26.0	R+10.6	R+15.4
2004	2004_Sen-G_OH	Sen-G	2004-10-26	600	R+31.0	R+27.7	R+3.3

Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5

Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.

A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.

Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.