The Shifting Moral Ground for Gays in the 2012 Election
In recent years Jonathan Haidt has made quite a name for himself by applying insights of moral psychology to politics.
In his book The Righteous Mind, Haidt argues that there are five moral foundations that have arisen through evolution, and that our instinctual moral reactions to different situations can be attributed to one of these five foundations. For example, people have an innate revulsion to harming others. We have evolved to care for other people because caring for others usually leads others to care for us. Similarly, we are morally indignant when we think people who owe us, or others, some favor renege on their assumed obligation.