in fact Republican and Democratic office holders and their retinues show a similar presumption to dominate and fewer differences in tastes, habits, opinions, and sources of income among one another than between both and the rest of the country. They think, look, and act as a class.
That is a fascinating observation, that the Republicans and Democrats have become less different from each other as they have again become more strident.
I know, I should make a political point from this, but the truth is, my interest is in conflict resolution, and the most emotional conflicts are ones where the difference is not about methods or goals, but about control and power. One would expect that if the core governing members of a party are becoming more alike, that the dialogue would become more emotionally driven.
Emotionally driven clashes are a way to work backwards to what conflicts are about, though not an infallible one. I need to think more on the specific conflicts we have now, but the general rule is one that you can apply to your own life. If it applies to the United States is a different question, and not one I can answer.