On my keyhole issue, the story was this: the seat of District 3, the parish of Calcasieu, which the two were competing to represent, is one of the most polluted counties in the nation—the district includes companies on Mike Tritico’s napkin map, as well as the half-remembered, half-forgotten tragedy of Bayou d’Inde. (In 2015, of the nine main waterways in the parish, the EPA listed eight as “impaired” and the ninth as “unassessed.”)