Kansas Senate Ad Blitz Swells to $84.5M, 71% Above 2020
Outside groups drove a 3,300% increase in costs compared to the previous cycle, making this the priciest contest in state history.
By Madison Darwish ·
The U.S. Senate race in Kansas has surpassed the previous record for ad spending, with combined costs for the two major-party candidates exceeding $84.5 million. This total dwarfs the $49.1 million spent during the 2020 election, according to data from the ad tracking firm AdImpact.
The contest between Republican Roger Marshall and Democrat Adam Hamilton has drawn national attention as parties vie for control of the Senate. A third candidate, Libertarian David Graham, is also on the ballot for the Tuesday election. The 2026 cycle is currently the most expensive in the nation.
Federal campaign finance records as of Oct. 14 show a stark difference in direct spending between the two main candidates. The Hamilton campaign has spent more than $16 million, while the Marshall campaign has spent just over $6 million. The gap reflects the heavy reliance on independent expenditures rather than direct party funds.
Outside groups account for the majority of the money poured into the race. Spending on these independent ads is up 3,332% from the 2022 Kansas Senate election. AdImpact reports that more than $27 million has been spent supporting Marshall, with another $8.5 million in the pipeline. For Hamilton, groups have spent more than $34 million, with an additional $14 million expected.
The Senate Leadership Fund stands out as the top spender for Marshall. The group directed at least $11 million to Kansas after moving funds from a North Carolina race earlier in the month. It has aired commercials favoring Marshall and criticizing Hamilton. On the other side, the People over Politics Action Fund, a Kansas-based super PAC, has spent more than $11 million against Marshall. This PAC has ties to former independent candidate Greg Orman, who donated $50,000 to the group in July.
National groups have also contributed heavily to the Kansas fight. Lower Costs Now, a Democratic super PAC, has spent nearly $6 million against Marshall and $4.5 million for Hamilton, according to PaidForPolitics. Meanwhile, Main Street Fund, a Republican-affiliated group formed on primary day, has spent nearly $4.6 million against Hamilton as of Oct. 21. Its funding originated from other Republican and pro-Trump PACs.
Source: KCUR 89.3
