Jonathan Haidt is a moral psychologist and Professor of Ethical Leadership at New York University. If you have never heard of "moral psychology" before it is because until
recently it was a near-moribund field. Moral psychology is the study of
how humans define and use morality. His 2013 book The Righteous Mind: Why Good People are Divide by Politics and Religion is a profoundly important book in today's highly irrational, bitterly decisive political and religious atmosphere, not only to understand the current battles in America, such as the emotional fight over the recent Supreme Court nomination of Justice Kavanaugh, but also to understand larger issues such as the roots of the battles between the West and the Muslim world, or China, or Russia. To name just three important insights from the book (there are far more): (1) there are far more dimensions to morality than the justice/fairness dimension that is almost the only dimension American culture focuses on, (2) Americans, and especially the educated middle-class Americans that are the group that most psychologist study, are highly atypical in the world as a whole, which calls into question much of our psychological research, and (3) not only are humans driven more by their emotions/intuitions than by reason (others have said this too), but in fact reason itself simply cannot operate without emotional/intuitions input.
Read this book. It will change your thinking and your perspective on lots of issues.