Have Gun, Will Travel (1957)

S2E17 The Taffeta Mayor

Title: The Taffeta Mayor Plot: In Colton, Wyoming, mayoral candidate John Kellaway enlists Paladin for protection against his rivals. Tragically, before Paladin can arrive, John is murdered. In the wake of this loss, Paladin convinces John's grieving widow to take up the mantle and run for mayor herself.