Deep divisions notwithstanding, there are a number of principles that unite the movement. The most important is a devotion to subsidiarity, which holds that power should rest as close to ordinary people as possible.
Read the whole thing. He may be right in his description of leading politicians who claim allegiance to the Tea Party, but I do not think he describes the movement at a grass roots level. I think of it as ordinary Americans who are filled with resentment of Washington. They perceive that Washington takes care of its own, not them.