i'm delighted to introduce you to our last author of this two days, elizabeth price-foley, who has written a book on the tea party, "tea party: three principles." you make the point that the tea party is not a party, it is a movement. what's the distinction that's worth knowing about? >> guest: well, yeah. it's not the party in the sense that it has no interest in anointing some sort of central leader. it really is a movement that's defined by what i talk about in the book, three very clear, very old constitutional principles. so you've noticed that the tea party, you know, through the november 2010 elections and continuing to today has been sort of ruthless about throwing its support behind candidates who espouse these principles, and they don't really care much whether those candidates have an r or d after their name, and they certainly don't seem to care that they might be well-entrenched, well-funded incumbent republicans. all they care about is getting their principles embraced by our politicians. >> host: and, in fact, the -- you say the media makes a mistake by thinking that the tea