Kansas · U.S. Senate

KS Class 2 Senate seat

Coverage: this seat is included in the 2026 national listing.

Candidate source

Candidate source: Kansas Secretary of State — KS upcoming candidates (human verification) (retrieved 2026-09-28). Absence of a candidate row is never evidence that a race has no candidates.

How the candidate list was checked

Rows read from the official source: 0 · published here: 0 · left out by rule: 0 · held back for review: 0. KS official candidate listing page (elections_upcoming_candidate.aspx) returns HTTP 405 with a 'Human Verification' interstitial to browser-UA curl; static candidate-information.html links only to the dynamic page. No file-based candidate list found.

Boundaries and sources

County–district classifications come from official block-assignment files, cross-checked against Census representations; render geometry is display-only.

Current officeholder

The current officeholder has not been confirmed in this edition. This does not establish that the seat is vacant.

Polling

Adam Hamilton (Democrat) against Roger Marshall (Republican). Too few polls in the last 30 days for an average: we need at least 3 polls from 2 pollsters.

Polls over time: Adam Hamilton against Roger Marshall3 polls since January 28, 2026; too few recent polls for an average.R+10R+5TieD+5D+10JanFebMarAprMayJunJulAugSepOctNovTavern Research, ended January 28, 2026: Adam Hamilton 46%, Roger Marshall 54% (R+8.0)Emerson College, ended September 16, 2026: Adam Hamilton 45%, Roger Marshall 43% (D+2.0)Wedgewood Polls, ended September 24, 2026: Adam Hamilton 50%, Roger Marshall 48% (D+2.0)
Adam Hamilton ahead Roger Marshall ahead 30-day average within 5 points data date (September 24, 2026) election day (November 3, 2026)
Polls over time: Adam Hamilton against Roger Marshall3 polls since January 28, 2026; too few recent polls for an average.R+10R+5TieD+5D+10JanMarMayJulSepNovTavern Research, ended January 28, 2026: Adam Hamilton 46%, Roger Marshall 54% (R+8.0)Emerson College, ended September 16, 2026: Adam Hamilton 45%, Roger Marshall 43% (D+2.0)Wedgewood Polls, ended September 24, 2026: Adam Hamilton 50%, Roger Marshall 48% (D+2.0)
Adam Hamilton ahead Roger Marshall ahead 30-day average within 5 points data date (September 24, 2026) election day (November 3, 2026)

A poll average describes what recent surveys found. Each poll has its own sampling error, larger for smaller samples. The average is not a forecast and not a probability. Matchup: named in the 3 most recent polls. 0 polls in the source were left out: party-sponsored or internal polls, other matchups, duplicate versions of the same poll, or polls missing who was surveyed.

All 3 polls
PollsterFieldworkSampleAdam HamiltonRoger MarshallMargin
Wedgewood PollsSeptember 22, 2026 – September 24, 2026500 likely voters50%48%D+2.0
Emerson College for Nexstar MediaSeptember 15, 2026 – September 16, 2026750 likely voters45%43%D+2.0
Tavern ResearchJanuary 26, 2026 – January 28, 20261,013 likely voters46%54%R+8.0

PrivateVoteHub Polls from the VoteHub Polling API, retrieved October 7, 2026, used under CC BY 4.0. How polls are chosen

Economic profile of the state this seat represents

FederalCensus Bureau American Community Survey 2020-2024 (5-year) · survey period 2020-2024 · State of Kansas

  • Median household income$74,275± $475
  • Poverty rate11.3%± 0.2 ppPopulation for whom poverty status is determined
  • Rent burden (30%+ of income on gross rent)43.5%± 0.7 ppRenter-occupied households paying cash rent for which rent burden is computed
  • Homeownership rate67.2%± 0.4 ppOccupied housing units
  • Bachelor's degree or higher (age 25+)35.6%± 0.3 ppPopulation 25 years and over
Technical definitions (ACS tables)
Rent burden (30%+ of income on gross rent)
Renter-occupied households paying cash rent for which rent burden is computed: B25070_001 minus B25070_011 (Not computed)

This seat's geography is exactly coterminous with its state (or the District), so the state estimates from the same edition apply directly.

Structural five-year survey conditions — not current monthly conditions. Uncertainties are 90% margins of error: the published ACS margin for median income; Census-formula approximations (ACS handbook ch. 8) for the rates. “Margin unavailable” means the source supplies no usable margin — never zero.

Campaign finances

No contest in this release carries campaign-finance context.

Current officeholder — Congress.gov context

Roger Marshall · Republican · Kansas · served in 5 Congresses since 2017

Identity verified against the official Congress.gov member record (Bioguide M001198), recorded through 2026-10-04T02:54:23Z. Current officeholding is separate from 2026 candidacy status. Official member website.

Recent housing, employment, energy and infrastructure legislation

From the member's sponsored then cosponsored legislation lists (newest first, limit 30 each), the newest items whose CONFIRMED official legislative subjects intersect {Housing and Community Development, Labor and Employment, Energy, Transportation and Public Works, Water Resources Development} are selected, at most 3 sponsored and 2 cosponsored, 5 total. Items whose relevance cannot be confirmed via the official /subjects endpoint are omitted.

  • SRES.593-119 — A resolution honoring the victims of the 2025 Potomac River mid-air collision.sponsor latest action 2026-01-29: Submitted in the Senate, considered, and agreed to without amendment and with a preamble by Unanimous Consent. (consideration: CR S397; text: CR S381-382) · subjects: Transportation and Public Works
  • S.2238-119 — PART Actcosponsor latest action 2025-07-10: Read twice and referred to the Committee on Commerce, Science, and Transportation. · subjects: Transportation and Public Works
  • S.5028-119 — Ratepayer Protection Actcosponsor latest action 2026-07-16: Read twice and referred to the Committee on Energy and Natural Resources. · subjects: Energy

Sponsorship is a record of introduction or support — not passage, effectiveness, or economic impact.

Counties and this district

County boundaries for this seat are not published in this release. Explore individual counties on the county map.