The United States is a special case, and for me, very interesting. It's studied carefully and we know a lot about it. One of the most striking features of the elections is the class-based character of the vote. Now, class is not discussed or even measured in the United States. In fact, the word is almost obscene, except for the term "middle class." And you can't get exact class data; the census doesn't even give class data. But you can sort of see the significance of it just from income figures.
