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Pollster file

Public Policy Polling

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
333
Mean absolute error
4.15percentage points
Historical bias
D+0.99
Represented cycles
112008–2022
Current archive
153canonical records
History span
Oct 17, 2008through Oct 20, 2022
Identity

Known names and relationships

Known aliases
Public Policy Polling (D)
Organization type
Single canonical organization
Cycles represented
2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2016 · 2018 · 2020 · 2022

333 eligible historical polls across 11 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.

9 shown · 153 total

Flanagan +2

Peggy Flanagan 46% · Rep 44%

Field dates
Sep 15–Sep 16, 2025
Sample
1,015 LV
Sponsor / client
GQR
Partisan sponsorship
Democratic-sponsored
House

HOU-TX-15

Cruz +3

Monica De La Cruz 41% · Bobby Pulido 38%

Field dates
Sep 10–Sep 11, 2025
Sample
533 LV
Sponsor / client
House Majority PAC
Partisan sponsorship
Democratic-sponsored
House

HOU-CA-22

Tied

David Valadao 42% · Jasmeet Bains 42%

Field dates
Aug 6–Aug 8, 2025
Sample
547 A
Sponsor / client
ASPIRE PAC · SEIU
Partisan sponsorship
Democratic-sponsored
House

HOU-PA-10

Stelson +3

Scott Perry 43% · Janelle Stelson 46%

Field dates
Jul 10–Jul 11, 2025
Sample
559 A
Sponsor / client
House Majority PAC
Partisan sponsorship
Democratic-sponsored
House

HOU-IA-01

Bohannan +4

Mariannette Miller-Meeks 39% · Christina Bohannan 43%

Field dates
Jun 18–Jun 19, 2025
Sample
555 A
Sponsor / client
House Majority PAC
Partisan sponsorship
Democratic-sponsored
Senate · D primary

Illinois · Senate

Krishnamoorthi +4

Juliana Stratton 13% · Raja Krishnamoorthi 20% · Robin Kelly 8% · Lauren Underwood 16%

Field dates
Apr 29–Apr 30, 2025
Sample
674 LV
Sponsor / client
Democratic Lieutenant Governors Association
Partisan sponsorship
Democratic-sponsored
Senate · D primary

Illinois · Senate

Stratton +17

Juliana Stratton 41% · Raja Krishnamoorthi 24%

Field dates
Apr 29–Apr 30, 2025
Sample
674 LV
Sponsor / client
Democratic Lieutenant Governors Association
Partisan sponsorship
Democratic-sponsored
Cooper +4

Roy Cooper 47% · Thom Thillis 43%

Field dates
Mar 4–Mar 5, 2025
Sample
662 RV
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 · 333 total

CycleRaceTypeField endSamplePollResultError
20122012_Sen-G_MISen-G2012-11-02700D+13.0D+20.8R+7.8
20122012_Sen-G_MASen-G2012-11-021,089D+6.0D+7.5R+1.6
20122012_Sen-G_CTSen-G2012-11-021,220D+9.0D+11.8R+2.8
20122012_Pres-G_WAPres-G2012-11-02932D+7.0D+14.9R+7.9
20122012_Pres-G_MIPres-G2012-11-02700D+6.0D+9.5R+3.5
20122012_Pres-G_MEPres-G2012-11-021,633D+13.0D+15.3R+2.3
20122012_Pres-G_MAPres-G2012-11-021,089D+15.0D+23.2R+8.2
20122012_Pres-G_M2Pres-G2012-11-02768D+5.0D+8.6R+3.6
20122012_Pres-G_M1Pres-G2012-11-02865D+20.0D+21.4R+1.4
20122012_Pres-G_CTPres-G2012-11-021,220D+13.0D+17.3R+4.3
20122012_Gov-G_WAGov-G2012-11-02932D+2.0D+3.1R+1.1
20122012_Pres-G_ORPres-G2012-11-01921D+6.0D+12.2R+6.2
20122012_Pres-G_MNPres-G2012-11-01772D+9.0D+7.7D+1.3
20122012_Pres-G_COPres-G2012-11-01825D+4.0D+5.4R+1.4
20122012_Pres-G_VAPres-G2012-10-31600D+3.0D+3.9R+0.9
20122012_Pres-G_MIPres-G2012-10-31500D+8.0D+9.5R+1.5
20122012_Pres-G_WIPres-G2012-10-30825D+5.0D+6.8R+1.9
20122012_Pres-G_OHPres-G2012-10-30600D+5.0D+3.0D+2.0
20122012_Pres-G_NCPres-G2012-10-307300R+2.0D+2.0
20122012_Pres-G_IAPres-G2012-10-30676D+5.0D+5.8R+0.8
20122012_Gov-G_NCGov-G2012-10-30730R+11.0R+11.4D+0.4
20122012_Sen-G_OHSen-G2012-10-27718D+11.0D+6.0D+5.0
20122012_Sen-G_FLSen-G2012-10-27687D+8.0D+13.0R+5.0
20122012_Pres-G_USPres-G2012-10-271,4000D+3.9R+3.9
20122012_Pres-G_OHPres-G2012-10-27718D+4.0D+3.0D+1.0
20122012_Pres-G_NHPres-G2012-10-27874D+2.0D+5.6R+3.6
20122012_Pres-G_FLPres-G2012-10-27687D+1.0D+0.9D+0.1
20122012_House-G_USHouse-G2012-10-271,400D+1.0D+1.1R+0.1
20122012_Gov-G_NHGov-G2012-10-27874D+4.0D+12.1R+8.1
20122012_House-G_NH-1House-G2012-10-26654R+1.0D+3.8R+4.8
20122012_House-G_MN-8House-G2012-10-261,020D+4.0D+8.9R+4.9
20122012_House-G_IL-8House-G2012-10-26500D+14.0D+9.5D+4.5
20122012_House-G_FL-18House-G2012-10-26631D+1.0D+0.6D+0.4
20122012_House-G_CA-7House-G2012-10-267920D+3.4R+3.4
20122012_Sen-G_NMSen-G2012-10-24727D+8.0D+5.7D+2.3
20122012_Pres-G_WIPres-G2012-10-24827D+6.0D+6.8R+0.8
20122012_Pres-G_VAPres-G2012-10-24722D+5.0D+3.9D+1.1
20122012_Pres-G_NMPres-G2012-10-24727D+9.0D+10.2R+1.1
20122012_Pres-G_NCPres-G2012-10-248800R+2.0D+2.0
20122012_Pres-G_IAPres-G2012-10-24690D+2.0D+5.8R+3.8
20122012_Pres-G_COPres-G2012-10-24904D+3.5D+5.4R+1.9
20122012_Gov-G_NCGov-G2012-10-24880R+13.0R+11.4R+1.6
20122012_Sen-G_NVSen-G2012-10-236360R+1.2D+1.2
20122012_Pres-G_USPres-G2012-10-231,200D+1.0D+3.9R+2.9
20122012_Pres-G_NVPres-G2012-10-23636D+3.0D+6.7R+3.7
20122012_House-G_NY-23House-G2012-10-22955R+5.0R+3.8R+1.2
20122012_Sen-G_MOSen-G2012-10-20582D+6.0D+15.7R+9.7
20122012_Pres-G_USPres-G2012-10-201,2000D+3.9R+3.9
20122012_Pres-G_MOPres-G2012-10-20582R+6.0R+9.4D+3.4
20122012_House-G_USHouse-G2012-10-201,3000D+1.1R+1.1

4 further rows are held in this pollster’s history shard as within-party or nonpartisan contests (Prim). Those carry no D/R orientation, so they are excluded from the error, bias and coverage figures above and from the table.

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.