What’s the matter with kansas? roger marshall. (and adam hamilton knows it)

Hell has frozen over: ruby red Kansas is squarely in Democrats’ sights as they fight for control of the US Senate. This isn’t a fluke, a polling error, or a fleeting political dream. Something genuine is shifting in the Sunflower State, giving Democrats their best opening in nearly a century to win this long Republican-held seat.

While headlines attribute this race to candidate quality (true) and national headwinds (also true), the ground-level data reveal 3 specific dynamics driving this historic shift.

Roger Marshall’s political vulnerability is compounded by his weak skills as a campaigner.

Incumbent Senator Roger Marshall carries a legislative record that includes voting against healthcare subsidies, against bipartisan infrastructure, and even against forming a January 6 commission. Yet policy votes alone rarely collapse an incumbent’s campaign.

Instead, the turning point arrived with a September New York Times investigation. The report revealed that during his time as an OB-GYN, Marshall sued over 700 of his patients - including pregnant women - charging predatory interest rates and resulting in the arrest of 81 patients over unpaid medical bills.

The story landed with explosive force. In our research at Tavern, independent and defecting Republican voters repeatedly played back to us the exact details of the investigation, reflecting deep moral discomfort:

• Independent woman: “I read an article about what he did with the patients who had medical debt with his old practice. Sadly, some were billed as high as 18% interest…that is so horrible when debt could be as low as $100.”

• Republican woman (now voting for Hamilton): “I heard he [Marshall] sued his patients for not being able to afford his outrageous doctor bill. He didn’t let them set up payments or try to help them in any way.”

• Republican man (now backing Hamilton): “He [Marshall] is a scumbag. He sued his patients [when] they couldn’t pay their bills.”

Compounding the damage is Marshall’s inability to manage the fallout. Accustomed to safe red-state elections, his campaign has failed to put a lid on the story – allowing it to become the dominant news story as the campaign enters the final weeks.

Contrast that with how his opponent, Adam Hamilton, handled a recent flimsy attack from Marshall: Hamilton addressed it head-on, cleared the record, and immediately pivoted back to Marshall’s health care record.

Public polling confirms the contrast. In the recent New York Times/Siena poll, Marshall’s unfavorable rating is 45%, whereas Hamilton’s remains largely unblemished at 27%. Among independent voters - kingmakers in this race - Marshall is underwater by more than a 2:1 margin (24% favorable to 57% unfavorable), while Hamilton enjoys a +25 rating (45% favorable to 20% unfavorable).

Hamilton is “dimensionalizing” his opponent.

Hamilton isn’t merely letting the news cycle do the work for him: he is going directly for the jugular. By weaving Marshall’s medical background and Senate record together, he has built a single, focused critique centered on character and values.

This approach is a textbook lesson in dimensionalizing an opponent; that is, using different parts of a candidate’s professional and political life to tell a story about who they are and what they value. The NYT investigation provided the hard evidence, and Hamilton’s campaign translated it into a moral framework. In one powerful ad, the campaign highlights an eight-month pregnant woman facing debt collectors dispatched by Marshall’s office. Allied groups like super PAC People Over Politics Kansas have reinforced this image, doubling down on ads that link Marshall’s votes on healthcare to his character.

By connecting real-world medical debt to Marshall’s legislative votes against healthcare affordability, Hamilton has defined Marshall not merely as an out-of-touch politician, but as someone whose personal conduct foreshadowed his public priorities.

All roads lead to cost of living – even healthcare and geopolitics.

While national headlines focus on foreign policy and macro shocks, Kansas voters view these developments through their own lives – it all comes down to cost of living.

Healthcare is a primary driver, and so is the war in Iran. The war reinforces that Trump and Republican leaders in Washington are not only detached from the financial pressures of daily life, but that they are actively laughing in the faces of voters who care about the cost of gas and diesel. In many ways, Trump’s war in Iran functions less like geopolitical policy and more like a direct hit to voters’ kitchen-table budgets.

Donald Trump won Kansas by 16 points in 2024, yet his job approval in the state now sits 15 points underwater. His declining marks on economic management match voter skepticism over foreign policy expenditures, sending a clear message: voters feel ignored on basic pocketbook issues.

Tavern’s research shows Hamilton capitalizing on this environment. In a state that voted overwhelmingly Republican two years ago, now a 53% to 47% majority of Kansas voters now say Adam Hamiton would do a better job than Marshall on lowering everyday costs.

The Path to a Dem Senate

What’s the matter with Kansas? Nothing that accountability can’t fix. Kansans feel betrayed by leaders who enrich themselves or turn a blind eye to everyday costs. Rather than relying on passive political realignment, Adam Hamilton has executed a disciplined campaign that gives voters a clear permission structure and moral framework to break party lines.

Whether this momentum can withstand the inevitable flood of national Republican dollars in the final stretch remains the central question. But for now, Kansas is no longer a red-state afterthought. Welcome to the 2026 battleground.