A supporter of US president Donald Trump wears a cap that reads "America stand your ground" as they wait for his arrival in Park City, Kansas, on October 19, 2026. In this Great Plains state, one of the country's tightest races will pit incumbent Republican Senator Roger Marshall against Democratic pastor Adam Hamilton. Messages targeting the Republican, an obstetrician by profession, are proliferating on television, social media and campaign leaflets, accusing him of "lying" to the public, "pretending he lives in Kansas" and having some of his patients arrested over unpaid medical bills. Many others target the Democrat, alleging that he criticized beef consumption in a sermon, is too "woke" or failed in the past to take allegations of child sexual abuse against a member of his church seriously. (Photo by Zina DESMAZES / AFP via Getty Images)