Advertising Age reports Cambridge Analytica noticed several crucial trends in early voting, including: a drop in African American turnout, a slight rise in Hispanic votes, and significantly more early voters aged 65 and over.
‘The polling re-weighting that the Trump camp conducted based on early voting data drove adjustments to digital ad messaging, campaign messaging and even plans for rallies. Last-minute pushes in Florida and Michigan were "certainly informed" by those data alterations.’