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Latest polls

Every eligible poll in every race covered, newest first. Excluded firms are listed separately with reasons. Polls on record as of October 31, 2026, 6:06 a.m. Pacific Daylight Time (13:06 UTC); adjusted averages from the nowcasts as of October 30, 2026, 5:55 p.m. Pacific Daylight Time (00:55 UTC).

Newest polls

All eligible polls in one complete HTML table, available without scripts. Filters require JavaScript; use the complete table if they cannot load.

Polls by 55 firms are not used and not listed here: firms that fabricated data, campaigns' own polling operations, and firms with no published poll of an election already decided, so no record to judge them by yet. The firms and why.

Newest polls
RaceDatesPollsterSampleResultMarginChecked
Kansas GovernorOct 26–28, 2026Emerson College800 LVMasterson 50 (R) · Holscher 46 (D)R+4Checked release
Kansas SenateOct 26–28, 2026Emerson College800 LVHamilton 50 (D) · Marshall 47 (R) · Graham 3 (L)D+3Release found release
Kansas GovernorOct 22–26, 2026The Washington Post/SSPG801 LVHolscher 51 (D) · Masterson 45 (R)D+6Not checked yet release
Kansas GovernorOct 20–26, 2026SSRS
for CNN
838 LVMasterson 50 (R) · Holscher 45 (D)R+5Checked release
Kansas SenateOct 20–26, 2026SSRS
for CNN
838 LVHamilton 49 (D) · Marshall 45 (R)D+4Checked release
Kansas SenateOct 22–26, 2026The Washington Post/SSPG801 LVHamilton 52 (D) · Marshall 43 (R) · Graham 4 (L)D+9Not checked yet release
Kansas GovernorOct 18–21, 2026Global Strategy Group
for Holscher's campaign
partisan sponsor
600 LVMasterson 47 (R) · Holscher 47 (D)EvenCitation unreadable release
Kansas SenateOct 13–14, 2026InsiderAdvantage1200 LVMarshall 48 (R) · Hamilton 47 (D)R+1Checked release
Kansas SenateOct 9–10, 2026InsiderAdvantage1200 LVHamilton 48 (D) · Marshall 47 (R) · Graham 3 (L)D+1Release found release
Kansas GovernorSep 24–Oct 4, 2026YouGov2255 LVMasterson 47 (R) · Holscher 44 (D)R+3Checked release
Kansas SenateSep 30–Oct 4, 2026GBAO
for Hamilton's campaign
partisan sponsor
600 LVHamilton 46 (D) · Marshall 41 (R) · Graham 7 (L)D+5Disputed release
Kansas SenateSep 24–Oct 4, 2026YouGov2255 LVHamilton 48 (D) · Marshall 45 (R)D+3Checked release
Kansas SenateSep 29–Oct 1, 2026Trafalgar Group1095 LVHamilton 44 (D) · Marshall 44 (R)EvenChecked release
Kansas GovernorSep 22–30, 2026New York Times/Siena College605 LVMasterson 49 (R) · Holscher 44 (D)R+5Checked release
Kansas SenateSep 22–30, 2026New York Times/Siena College605 LVHamilton 45 (D) · Marshall 45 (R) · Graham 3 (L)EvenChecked release
Kansas GovernorSep 13–16, 2026Global Strategy Group
for Democratic Attorneys General Association
partisan sponsor
800 LVHolscher 49 (D) · Masterson 46 (R)D+3Checked release
Kansas GovernorSep 15–16, 2026Emerson College750 LVMasterson 51 (R) · Holscher 44 (D)R+7Checked release
Kansas SenateSep 15–16, 2026Emerson College750 LVHamilton 45 (D) · Marshall 43 (R)D+2Checked release
Kansas SenateSep 13–16, 2026Global Strategy Group
for Democratic Attorneys General Association
partisan sponsor
800 LVHamilton 47 (D) · Marshall 43 (R) · Graham 5 (L)D+4Checked release
Kansas GovernorSep 8–10, 2026co/efficient915 LVMasterson 51 (R) · Holscher 43 (D)R+8Checked release
Kansas SenateSep 8–10, 2026co/efficient915 LVMarshall 49 (R) · Hamilton 44 (D)R+5Checked release
Kansas GovernorAug 13–16, 2026Global Strategy Group
for Cindy Holscher campaign
campaign internal
600 LVHolscher 47 (D) · Masterson 46 (R)D+1Checked release
Kansas SenateAug 12–16, 2026Global Strategy Grouppartisan sponsor800 LVHamilton 44 (D) · Marshall 43 (R)D+1Release found release
Kansas SenateAug 7–8, 2026Public Policy Pollingpartisan sponsor569 LVMarshall 46 (R) · Hamilton 45 (D)R+1Release found release
Kansas SenateJul 8–13, 2026GBAO
for Hamilton for Kansas
campaign internal
600 LVMarshall 47 (R) · Hamilton 43 (D)R+4Citation unreadable release

Polling averages by race

Simple average: the plain mean margin of the race's polls in the 30 days before its newest one, between the two candidates the forecast is between (the Democrat and the Republican in most races; where an independent is the main challenger, the independent). Adjusted average: the nowcast's estimate of the race today -- polls weighted by recency and size, corrected for each pollster's measured lean. Where they differ, the difference is the adjustment. House district polls listed here are inputs to the House model's election-day forecast (each district's estimate is moved toward its own polls, corrected for the sponsor's measured lean); there is no House nowcast. A race the model withholds shows its polls and no adjusted average.

Polling averages by race
RacePollsLatestSimple average
30 days to the newest poll (n)
Adjusted average
our nowcast
Forecast
Kansas Governor10Oct 28, 2026R+2 (6)R+2Kansas Governor forecast
Kansas Senate15Oct 28, 2026D+3 (9)D+2Kansas Senate forecast