Here is a useful summary of how Democrats sliced and diced the electorate and created target messages for different segments. In Republicans Should Use Target Marketing Strategies, on American Thinker, Zach Krajacic tells us:
A political election campaign is essentially a marketing campaign, except that you are selling a person (and his or her ideas) rather than a product or service. During the recent presidential election, the Democrats effectively used the same marketing techniques that businesses use — market segmentation, targeted messaging, and emotion-based selling. The Republicans should consider adopting a similar model to win future elections.