Today's Republican Party does a great job of sticking up for rich people, which is ironic given that most wealthy Americans live in states and congressional districts that are represented by Democratic lawmakers -- which, of course, helps explain why Democrats also do such a good job of sticking up for rich people.
Think of it this way: The GOP is ideologically committed to defending the rich, even as it increasingly speaks for white voters of modest means, while the Democratic Party -- which represents much of affluent Ame