1. Madison County is undergoing significant "Black suburbanization" - a lot of neighborhoods in Ridgeland centered around Northpark Mall (immediately adjacent to the City of Jackson, from the Natchez Trace south to the county line, east of Hwy 51) are majority Black at this point. This increasing diversity is what's powering Madison County's new competitiveness.
In addition to this, there's also a small yet notable and growing Hispanic population in Ridgeland largely residing in those same apartments.
If you had to guess, what is the next time Madison County actually votes D on presidential level?