Does anyone know how Washington Post has managed to source Google Trends data at county level for this map?
Here's a state-level query for Kansas. The geographical response is by
In the (unofficial) API response this data is labeled
interest_by_dma (designated market area), which is more granular than state level, but less than county as per Washpost's map.
I've heard that Google does not sell Trends data. Assuming this is right and Washpost does not have some private arrangement, does anyone know how they might have sourced this data?