When Two Heated Political Issues Descended on One Swing District Town

Marana, Ariz., is used to placid local politics, but the town, in a congressional district held by Juan Ciscomani, has been convulsed by two national issues, A.I. and immigration detention.A proposed data center in Marana, Ariz., would rise from what’s left of the fallow agricultural land that has not been consumed by tract housing.