The following article by Amanda Taub was posted on the New York Times website April 12, 2017:
Highly educated professionals tend to lean Democratic, even though Republican tax policies would probably leave more money in their pockets.
Why do people vote against their economic interests?
The answer, experts say, is partisanship. Party affiliation has become an all-encompassing identity that outweighs the details of specific policies.
“Partisan identification is bigger than anything the party does,” said Frances Lee, a professor at the University of Maryland who wrote a book on partisan polarization. Rather, it stems from something much more fundamental: people’s idea of who they are. (more…)