Democrat Adam Hamilton has secured a significant victory in Kansas, unseating Republican Senator Roger Marshall and becoming the first Democrat to win a Senate seat in the state since 1932. The Associated Press called the race for Hamilton late Tuesday. President Donald Trump and Vice President JD Vance had made last-minute efforts to support Marshall's campaign.
Hamilton, a Methodist pastor, focused his campaign on economic issues, particularly rising fuel and fertilizer costs impacting Kansas farmers. He also garnered support from independent voters and some moderate Republicans, contributing to a tighter race than anticipated.
Marshall, who has represented Kansas in the Senate since 2021, ran on continuing the Trump agenda and warned of the consequences of Democratic control of the chamber. The Republican campaign had invested heavily in Marshall's re-election bid, committing over $26 million in advertising after the August primary. In total, advertising spending in the race reached approximately $71 million, a record for Kansas.
The campaigns engaged in sharp exchanges, with Marshall's campaign labeling Hamilton as "too woke and too weak for Kansas." An advertisement from the Senate Leadership Fund characterized Hamilton as an extremist. Marshall's campaign also brought up past controversies regarding how Hamilton's church handled abuse allegations at youth camps in 2005 and 2006. Hamilton stated that the incidents were reported to the police and that he ensured the perpetrator was convicted.
Hamilton's campaign, in turn, highlighted a controversy surrounding Marshall's past medical practice, specifically its debt collection practices. Marshall's legal team sent a cease-and-desist letter regarding an advertisement on the matter, which Hamilton dismissed.
In a late attempt to address the medical debt issue, Marshall released a campaign video explaining his practice's decision to turn over unpaid accounts to collection agencies to maintain the practice's operations, though some senior campaign advisors reportedly did not know about the video's release. Marshall stated that voters had raised the issue, prompting him to share his perspective.
Trump had won Kansas by over 16 points in 2024, making Hamilton's win a notable upset in a state that has historically leaned Republican.