Two of America’s Thorniest Political Issues Are Dividing an Arizona Town

Marana, Ariz., is used to placid local politics, but the town, in a congressional swing 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.