{"as_of":"2026-06-12","elections":{"through_year":2024,"source":"MIT Election Data and Science Lab (county presidential)"},"demographics":{"release":"2024 5-year","source":"US Census Bureau, American Community Survey 5-year"},"religion":{"census":"2020","source":"2020 US Religion Census (ASARB)"},"geography":{"vintage":"2024 (counties, precincts, CBSA/DMA); 2025 (TIGER state-legislative redraws)","source":"US Census Bureau, TIGER/Line"},"editorial":{"last_updated":"2026-06-12"}}