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Tap a state, a sticky note or a race in the list. Colour is the current On Point average: pale when close, deep when safe.

KeySafe DLikely DLean DToss upLean RLikely RSafe RLean IDrawing the map
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Below the lineKansas: Hamilton vs. MarshallHamilton+3.015 polls
2026 Senate

Kansas Senate average

Hamilton vs. Marshall. Hamilton leads by 3.0 points in the On Point average of 15 public polls: a robust LOWESS fit through every poll, weighted by a 15.8 day recency half life, sample size, voter screen and pollster grade, with three bisquare passes that weigh down outliers.

15 polls12 pollstersUpdated Oct 21, 202630 days +0.8Forecast D +2.8 · open the racePublic JSON
Hamilton48.7
MarginHamilton+3.0
Marshall45.7
Newest 15 polls
The average over time
40%42%44%46%48%50%52%54%56%MayJunJulAugSepOct48.7Hamilton45.7Marshall
The line is the On Point average: a robust LOWESS fit through the polls, weighted by recency, sample, voter screen and pollster grade, refit three times so outliers count for lessDot size is each poll's weight todayHollow dot: a lean firm's poll as published; the filled dot is where the average counts it, after its measured lean is taken offHover or use the arrow keys to read any day

What moves the average today

Share of today's weight
InsiderAdvantageOct 14 · 800 LV · A+ · R lean, counted Hamilton+3.6 in the average16%Marshall+1.0
On Point PollingOct 21 · 479 LV · Gold16%Hamilton+1.8
New York Times/SienaSep 30 · 600 LV · Gold15%Even
InsiderAdvantageOct 10 · 1,200 LV · A+ · R lean, counted Hamilton+5.6 in the average15%Hamilton+1.0
Trafalgar Group (R)Oct 1 · 1,095 LV · A- · R lean, counted Hamilton+4.7 in the average12%Hamilton+0.9
Emerson College / NexstarSep 16 · 750 LV · Gold11%Hamilton+2.0
YouGovOct 4 · 2,255 LV · C11%Hamilton+3.0
Global Strategy Group (D)Sep 16 · 800 LV · A-3.5%Hamilton+4.0
Every other poll together: 1.2%

Each poll's weight is its sample size, voter screen, pollster grade and age, with a 15.8 day half life, and those weights are the kernel of a robust LOWESS fit: a local line read at the day itself, with three bisquare passes that weigh down any poll far from the rest. No single poll can carry more than 15 percent. Gold Standard pollsters, On Point Polling, Big Data Poll, The Honest Poll, Emerson, Cygnal, Quantus Insights, The New York Times and The Wall Street Journal, carry the top grade. Rasmussen Reports and ActiVote are not counted. Trafalgar and InsiderAdvantage are marked Lean R and Impact Research Lean D. The tables show every poll as published; the average counts a lean firm's poll moved the other way by its measured lean against other polls of the same races, and the chart shows that move as a hollow dot for the poll as published joined to the filled dot the average counts: Trafalgar 3.8 points right over 35 polls, InsiderAdvantage 4.6 points right over 42 polls, Impact Research 0.0 points left over 0 polls.

All polls

15 of 15
On Point averageOct 21, 202615 polls48.745.7Hamilton+3.0100%
On Point PollingGoldOct 21, 26479LV4947Hamilton+1.815.7%
InsiderAdvantageA+Lean ROct 14, 26800LV4748Marshall+1.016.1%
InsiderAdvantageA+Lean ROct 10, 261,200LV4847Hamilton+1.014.5%
YouGovCOct 4, 262,255LV4845Hamilton+3.010.7%
GBAO for Hamilton (D)FOct 4, 26600LV4843Hamilton+5.00%
GBAO (D)FOct 4, 26600LV4944Hamilton+5.00.1%
Trafalgar Group (R)A-Lean ROct 1, 261,095LV4444Hamilton+0.912.4%
New York Times/SienaGoldSep 30, 26600LV4545Even14.7%
Emerson College / NexstarGoldSep 16, 26750LV4543Hamilton+2.011.3%
Global Strategy Group (D)A-Sep 16, 26800LV4743Hamilton+4.03.5%
co/efficient (R)C+Sep 10, 26915LV4449Marshall+5.00.8%
Global Strategy Group (D)A-Aug 16, 26800LV4443Hamilton+1.00.3%
Voter sample
Hamilton+3.0
15 polls in the average