Unpopular Mandate: Why do politicians reverse their positions?

… Psychologists have a term for this: “motivated reasoning,” which Dan Kahan, a professor of law and psychology at Yale, defines as “when a person is conforming their assessments of information to some interest or goal that is independent of accuracy”—an interest or goal such as remaining a well-regarded member of his political party, or winning the next election, or even just winning an argument. [cont.]

Ezra Klein, The New Yorker